W19B320BT/B DATASHEET
Table of Contents-
1.
2.
3.
4.
5.
6.
GENERAL DESCRIPTION .............................................................................................................. 4
FEATURES ...................................................................................................................................... 5
PIN CONFIGURATIONS.................................................................................................................. 7
BLOCK DIAGRAM ........................................................................................................................... 8
PIN DESCRIPTION.......................................................................................................................... 8
FUNCTIONAL DESCRIPTION ........................................................................................................ 9
6.1
Device Bus Operation ............................................................................................................. 9
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.1.8
6.1.9
6.1.10
6.1.11
6.1.12
6.1.13
Word/Byte Configuration ..........................................................................................................9
Reading Array Data ..................................................................................................................9
Writing Commands/Command Sequences...............................................................................9
Standby Mode ........................................................................................................................10
Automatic Sleep Mode ...........................................................................................................10
#RESET: Hardware Reset Pin................................................................................................10
Output Disable Mode..............................................................................................................11
autoselect Mode .....................................................................................................................11
Sector/Sector Block Protection and Unprotection...................................................................11
Write Protect (#WP)................................................................................................................11
Temporary Sector Unprotect ..................................................................................................12
Security Sector Flash Memory Region ...................................................................................12
Hardware Data Protection ......................................................................................................13
Reading Array Data ................................................................................................................13
Reset Command.....................................................................................................................14
AUTOSELECT Command Sequence .....................................................................................14
Byte/Word Program Command Sequence..............................................................................15
Unlock Bypass Command Sequence .....................................................................................15
Chip Erase Command Sequence ...........................................................................................16
Sector Erase Command Sequence ........................................................................................16
Erase Suspend/Erase Resume Commands ...........................................................................17
DQ7: #Data Polling.................................................................................................................17
RY/#BY: Ready/#Busy ...........................................................................................................18
DQ6: Toggle Bit I ....................................................................................................................18
DQ2: Toggle Bit II ...................................................................................................................19
Reading Toggle Bits DQ6/DQ2...............................................................................................19
DQ5: Exceeded Timing Limits ................................................................................................19
6.2
Command Definitions............................................................................................................ 13
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
6.2.8
6.3
Write Operation Status.......................................................................................................... 17
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
-1-
Publication Release Date: Dec. 25, 2007
Revision A3
W19B320BT/B DATASHEET
6.3.7
DQ3: Sector Erase Timer .......................................................................................................20
7.
TABLE OF OPERATION MODES ................................................................................................. 21
7.1
7.2
7.3
7.4
7.5
7.6
Device Bus Operations ......................................................................................................... 21
AUTOSELECT Codes (High Voltage Method) ..................................................................... 22
Sector Address Table (Top Boot Block) ............................................................................... 23
Sector Address Table (Bottom Boot Block) .......................................................................... 25
Top Boot Sector/Sector Block Address for Protection/Unprotection) ................................... 27
CFI Query Identification String.............................................................................................. 29
7.6.1
7.6.2
7.6.3
7.6.4
7.6.5
System Interface String ..........................................................................................................29
Device Geometry Definition ....................................................................................................30
Primary Vendor-Specific Extended Query ..............................................................................31
Command Definitions .............................................................................................................32
Write Operation Status ...........................................................................................................33
7.7
7.8
7.9
Temporary Sector Unprotect Algorithm ................................................................................ 33
In-System Sector Protect/Unprotect Algorithms ................................................................... 35
Security Sector Protect Verify ............................................................................................... 36
7.10 Program Algorithm ................................................................................................................ 36
7.11 Erase Algorithm..................................................................................................................... 37
7.12 Data Polling Algorithm........................................................................................................... 37
7.13 Toggle Bit Algorithm.............................................................................................................. 38
8.
ELECTRICAL CHARACTERISTICS.............................................................................................. 39
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
Absolute Maximum Ratings .................................................................................................. 39
Operating Ranges ................................................................................................................. 39
DC Characteristics ................................................................................................................ 40
CMOS Compatible ................................................................................................................ 40
AC Characteristics ................................................................................................................ 41
Test Condition ....................................................................................................................... 41
8.6.1
AC Test Load and Waveforms ...............................................................................................41
Read-Only Operations .......................................................................................................... 42
Hardware Reset (#RESET)................................................................................................... 42
Word/Byte Configuration (#BYTE) ........................................................................................ 42
8.10 Erase and Program Operation .............................................................................................. 43
8.11 Temporary Sector Unprotect................................................................................................. 43
8.12 Alternate #CE Controlled Erase and Program Operations ................................................... 44
9.
TIMING WAVEFORMS .................................................................................................................. 45
9.1
AC Read Waveform .............................................................................................................. 45
Publication Release Date:Dec.25, 2007
Revisionv A3
-2-
W19B320BT/B DATASHEET
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
Reset Waveform ................................................................................................................... 45
#BYTE Waveform for Read Operation.................................................................................. 46
#BYTE Waveform for Write Operation.................................................................................. 46
Programming Waveform ....................................................................................................... 47
Accelerated Programming Waveform ................................................................................... 47
Chip/Sector Erase Waveform ............................................................................................... 48
Back-to back Read/Write Cycle Waveform........................................................................... 48
#Data Polling Waveform (During Embedded Algorithms) .................................................... 49
9.10 Toggle Bit Waveform (During Embedded Algorithms).......................................................... 49
9.11 DQ 2 vs. DQ6 Waveform ...................................................................................................... 50
9.12 Temporary Sector Unprotect Timing Diagram ...................................................................... 50
9.13 Sector/Sector Block Protect and Unprotect Timing Diagram................................................ 50
9.14 Alternate #CE Controlled Write (Erase/Program) Operation Timing .................................... 51
10. LATCHUP CHARACTERISTICS ................................................................................................... 52
11. CAPACITANCE.............................................................................................................................. 52
12. ORDERING INFORMATION.......................................................................................................... 53
13. PACKAGE DIMENSIONS .............................................................................................................. 54
13.1 TFBGA48ball (6X8 mm^2, Ø=0.40mm) ................................................................................ 54
13.2 48-Pin Standard Thin Small Outline Package ...................................................................... 55
14. VERSION HISTORY ...................................................................................................................... 56
-3-
Publication Release Date:Dec. 25, 2007
Revisionv A3
W19B320BT/B DATASHEET
1. GENERAL DESCRIPTION
The W19B320BT/B is a 32Mbit, 2.7~3.6-volt single bank CMOS flash memory organized as 4M x 8 or
2M
×
16 bits. The word-wide (× 16) data appears on DQ15-DQ0, and byte-wide (x 8) data appears on
DQ7-DQ0. The device can be programmed and erased in-system with a standard 3.0-volt power
supply. A 12-volt V
PP
is not required. The unique cell architecture of the W19B320BT/B results in fast
program/erase operations with extremely low current consumption (compared to other comparable 3-
volt flash memory products). The device can also be programmed and erased by using standard
EPROM programmers.
-4-
Publication Release Date:Dec.25, 2007
Revisionv A3
W19B320BT/B DATASHEET
2. FEATURES
Performance
•
•
2.7~3.6-volt write (program and erase) operations
Fast write operation
−
Sector erases time: 0.4 Sec (typical)
−
Chip erases time: 30Sec (typical)
−
Byte/Word programming time: 7/9
s
(typical)
•
Read access time: 70 ns
•
•
•
Typical program/erase cycles: 100K
Twenty-year data retention
Ultra low power consumption
−
Active current (Read): 10 mA (typical)
−
Active current (Read while Erase): 21 mA (typical)
−
Standby current: 0.2
μA
(typical)
Architecture
•
Sector erase architecture
−
Eight 8KB, and sixty-three 64KB sectors
−
Top or bottom boot block configurations available
−
Supports full chip erase
•
Security Sector Size: 256 Bytes
−
The Security Sector is an OTP; once the sector is programmed, it cannot be erased
•
JEDEC standard byte-wide and word-wide pinouts
•
•
Manufactured on WinStack 0.13μm process technology
Available packages: 48-pin TSOP and 48-ball TFBGA (6x8mm)
Software Features
•
Compatible with common Flash Memory Interface (CFI) specification
−
Flash device parameters stored directly on the device
−
Allows software driver to identify and use a variety of different current and future Flash products
•
Erase Suspend/Erase Resume
−
Suspends erase operations to allow programming in same bank
•
End of program detection
−
Software method: Toggle bit/Data polling
•
Unlock Bypass Program command
−
Reduces overall programming time when issuing multiple program command sequences
-5-
Publication Release Date:Dec. 25, 2007
Revisionv A3
聊聊、笑笑、闹闹
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
