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HMF25664F4VP-70

产品描述FLASH-ROM MODULE 2MByte (256K x 64-Bit) ,120PIN SMM,3.3V
文件大小426KB,共12页
制造商HANBIT Electronics
官网地址http://www.hbe.co.kr/
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HMF25664F4VP-70概述

FLASH-ROM MODULE 2MByte (256K x 64-Bit) ,120PIN SMM,3.3V

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HANBit
HMF25664F4VP
FLASH-ROM MODULE 2MByte (256K x 64-Bit) ,120PIN SMM,3.3V
Part No. HMF25664F4VP
GENERAL DESCRIPTION
The HMF25664F4VPis a high-speed flash read only memory (FROM) module containing 262,144 words organized in an
x64bit configuration. The module consists of four 256K x 16 FROM mounted on a 120-pin, SMM connector FR4-printed circuit
board. Commands are written to the command register using standard microprocessor write timings.
Register contents serve as input to an internal state-machine, which controls the erase and programming circuitry. Write
cycles also internally latch addresses and data needed for the programming and erase operations. Reading data out of the
device is similar to reading from 12.0V flash or EPROM devices.
Output enable (/OE) and write enable (/WE) can set the memory input and output. The host system can detect a program or
erase operation is complete by observing the Ready Pin, or reading the DQ7(Data # Polling) and DQ6(Toggle) status bits.
When FROM module is disable condition the module is becoming power standby mode, system designer can get low -power
design. All module components may be powered from a single + 3.0V DC power supply and all inputs and outputs are LVTTL-
compatible
PIN ASSIGNMENT
Symb
ol
Vss
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
Vss
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
Vss
A10
A11
A12
A13
A14
Vss
A15
A17
NC
NC
Vss
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
FEATURES
w
Access time : 50, 55, 70, 90 and 120ns
w
High-density 2MByte design
w
High-reliability, low-power design
w
Single + 3V
±
0.3V power supply
w
Easy memory expansion
w
Hardware reset pin(RESET#)
w
FR4-PCB design
w
120-Pin Designed
Connector P1,P2
w
Minimum 1,000,000 write cycle guarantee per
sector
w
20-year data retention at 125 oC
w
Flexible sector architecture
w
Embedded algorithms
w
Erase suspend / Erase resume
by 60-Pin Fine Pitch
P1
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
F
29
30
Symb
ol
Vcc
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
Vcc
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
Vcc
A1
A2
A3
A4
A5
Vcc
A6
A7
A8
A9
Vcc
PIN
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
Symb
ol
Vcc
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
Vcc
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
Vcc
NC
A0
A16
/WE1
/WE2
Vcc
/OE
/RES
ET
/WE0
/RY_B
Y
Vcc
P2
PIN
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
Symbol
Vss
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
Vss
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
Vss
NC
/BANK0
Vss
/BYTE
/WE3
Vss
NC
NC
NC
NC
Vss
OPTIONS
w
Timing
50ns access
55ns access
70ns access
90ns access
120ns access
w
Packages
120-pin SMM
MARKING
-50
-55
-70
-90
-120
URL:
www.hbe.co.kr
REV.02(August,2002)
1
HANbit Electronics Co., Ltd.

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