Rev.1.2
_00
CMOS SERIAL E
2
PROM
S-29ZX30A Series
The S-29ZX30A series are low power 4K/8K-bit E
2
PROM with a low operating
voltage range. They are organized as 256-word
×
16-bit and 512-word
×
16bit,
respectively. Each is capable of sequential read, at which time addresses are
automatically incremented in 16-bit blocks. The instruction code is compatible
with the NM93CSXX series.
■
Features
·
Endurance : 10
5
cycles/word
·
Data retention : 10 years
·
S-29Z330A : 4K bits NM93CS66 instruction code compatible
·
S-29Z430A : 8K bits NM93CSXX series compatible
·Low
power consumption
Standby : 2.0
µ
A Max. (V
CC
=3.6 V)
Operating : 0.6 mA Max. (V
CC
=3.6 V)
: 0.4 mA Max. (V
CC
=2.7 V)
·Wide
operating voltage range
Write
: 0.9 to 3.6 V
Read
: 0.9 to 3.6 V
·Sequential
read capable
■
Package
8-pin SOP(JEDEC)
8-pin SSOP
(PKG drawing code :FJ008-D)
(PKG drawing code : FS008-A)
■
Pin Assignment
8-pin SOP(JEDEC)
Top view
CS
SK
DI
DO
1
2
3
4
8
7
6
5
VCC
NC
TEST
GND
CS
SK
DI
DO
1
2
3
4
8-pin SSOP
Top view
8
7
6
5
VCC
NC
TEST
GND
S-29Z330ADFJA
S-29Z430ADFJA
S-29Z330AFS
* See
■
Dimensions
Figure 1
■
Pin Functions
Table 1
Name
CS
SK
DI
DO
GND
TEST
NC
VCC
Pin Number
SOP(JEDEC)
1
2
3
4
5
6
7
8
SSOP
1
2
3
4
5
6
7
8
Function
Chip select input
Serial clock input
Serial data input
Serial data output
Ground
Test pin (normally kept open)
(can be connected to GND or Vcc)
No Connection
Power supply
Seiko Instruments Inc.
1
CMOS SERIAL E
2
PROM
S-29ZX30A Series
■
Block Diagram
Memory array
Address
decoder
V
CC
GND
Data register
DI
Mode decode logic
CS
Output buffer
DO
SK
Clock generator
Figure 2
■
Instruction Set
Table 2
Instruction
Start
Bit
Opo
Code
Address
S-29Z330A
READ
(Read data)
1
1
1
1
1
10
01
11
00
00
A
7
to A
0
A
7
to A
0
A
7
to A
0
11xxxxxx
00xxxxxx
S-29Z430A
xA
8
to A
0
xA
8
to A
0
xA
8
to A
0
11xxxxxxxx
00xxxxxxxx
D
15
to D
0
Output*
D
15
to D
0
Input
Data
WRITE (Write data)
ERASE (Erase data)
EWEN (Program enable)
EWDS (Program disable)
x: Doesn’t matter.
*: Addresses are continuously incremented.
■
Absolute Maximum Ratings
Table 3
Parameter
Power supply voltage
Input voltage
Output voltage
Operating ambient temperature
Storage temperature under bias
Storage temperature
Symbol
V
CC
V
IN
V
OUT
T
opr
T
bias
T
stg
Ratings
-0.3 to +7.0
-0.3 to V
CC
+0.3
-0.3 to V
CC
-40 to +85
-50 to +95
-65 to +150
Unit
V
V
V
°C
°C
°C
■
Recommended Operating Conditions
Table
4
Parameter
Power supply voltage
Symbol
V
CC
V
IH
Conditions
READ/WRITE/ERASE
EWEN/EWDS
VCC= 1.8 to 3.6 V
V
CC
= 0.9 to 1.8 V
Low level input voltage
V
IL
VCC= 1.8 to 3.6 V
V
CC
= 0.9 to 1.8 V
Min.
0.9
0.8
×
Vcc
0.9
×
Vcc
0.0
0.0
Typ.
--
--
--
--
--
Max.
3.6
Vcc
Vcc
0.2
×
Vcc
0.1
×
Vcc
Unit
V
V
V
V
V
High level input voltage
2
Seiko Instruments Inc.
CMOS SERIAL E
2
PROM
S-29ZX30A Series
■
Operation
Instructions (in the order of start-bit, instruction, address, and data) are latched to DI in synchronization with the
rising edge of SK after CS goes high. A start-bit can only be recognized when the high of DI is latched to the rising edge
of SK when CS goes from low to high, it is impossible for it to be recognized as long as DI is low, even if there are SK
pulses after CS goes high. Any SK pulses input while DI is low are called "dummy clocks." Dummy clocks can be used
to adjust the number of clock cycles needed by the serial IC to match those sent out by the CPU. Instruction input
finishes when CS goes low, where it must be between commands during t
CDS
.
All input, including DI and SK signals, is ignored while CS is low, which is stand-by mode.
1. Read
The READ instruction reads data from a specified address. After A0 is latched at the rising edge of SK, DO output
changes from a high-impedance state (Hi-Z) to low level output. Data is continuously output in synchronization with the
rise of SK.
When all of the data (D15 to D0) in the specified address has been read, the data in the next address can be read
with the input of another SK clock. Thus, it is possible for all of the data addresses to be read through the continuous
input of SK clocks as long as CS is high.
The last address (An
A1 A0 = 1
11) rolls over to the top address (An
A1 A0 = 0
00).
CS
SK
DI
DO
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
24
25
26
27
28
29
40
41
42
43
44
45
1
0
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
Hi-Z
0
D
15
D
14
D
13
D
2
D
1
D
0
D
15
D
14
D
13
D
2
D
1
D
0
D
15
D
14
D
13
Hi
-
Z
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
+1
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
+2
Figure 4
Read Timing (S-29Z330A)
CS
SK
DI
DO
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
27
28
29
30
31
32
43
44
45
46
48
49
1
0
X
A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
Hi-Z
0
D
15
D
14
D
13
D
2
D
1
D
0
D
15
D
14
D
13
D
2
D
1
D
0
D
15
D
14
D
13
Hi
-
Z
A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
+1
A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
+2
Figure 5
Read Timing (S-29Z430A)
Seiko Instruments Inc.
5
stm32/stm8
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