Rev.1.1
_00
CMOS SERIAL E
2
PROM
S-93A86A
The S-93A86A is a high-temperature operation, high
speed, low current consumption, 16 K-bit serial
E
2
PROM with a wide operating voltage range. It is
organized as 1024-word
×
16-bit. It is capable of
sequential read, at which time addresses are
automatically incremented in 16-bit blocks. The
instruction code is compatible with the NM93CS86.
Features
•
Low current consumption
•
Wide operating voltage range
Standby: 3.0
µA
Max. (V
CC
=
5.5 V)
Operating: 1.0 mA Max. (V
CC
=
5.5 V)
0.6 mA Max. (V
CC
=
2.7 V)
Read:
2.7 to 5.5 V
Write:
2.7 to 5.5 V
•
Sequential read capable
•
Write disable function when power supply voltage is low
•
Function to protect against write due to erroneous instruction recognition
•
CMOS schmitt input (CS, SK)
•
Endurance:
10
6
cycles/word* (at
+85°C)
1.5
×
10
5
cycles/word* (at
+125°C)
* For each address (Word: 16 bits)
•
Data retention:
15 years (after rewriting 1.5
×
10
5
cycles/word at
+125°C)
•
High-temperature operation:
+125°C
Max.
Packages
Package name
8-Pin SOP (JEDEC)
Package
FJ008-A
Drawing code
Tape
FJ008-D
Reel
FJ008-D
Caution Before using the product in medical equipment or automobile equipment including car audios,
keyless entries and engine control units, contact to SII is indispensable.
Seiko Instruments Inc.
1
CMOS SERIAL E
2
PROM
S-93A86A
Pin Assignment
8-Pin SOP (JEDEC)
Top view
CS
SK
DI
DO
Rev.1.1
_00
Table 1
Pin No.
Pin name
Pin description
1
CS
Chip select input
2
SK
Serial clock input
3
DI
Serial data input
4
DO
Serial data output
5
GND
Ground
*1
6
TEST
Test
7
NC
No connection
8
VCC
Power supply
*1.
Connect to GND or VCC.
Even if this pin is not connected, performance is not affected
so long as the absolute maximum rating is not exceeded.
Remark
Refer to the “Package
drawings”
for the details.
1
2
3
4
8
7
6
5
VCC
NC
TEST
GND
Figure 1
S-93A86AD0A-J8T2
2
Seiko Instruments Inc.
Rev.1.1
_00
Block Diagram
Memory array
Address
decoder
CMOS SERIAL E
2
PROM
S-93A86A
VCC
GND
Data register
DI
Mode decode logic
CS
Clock pulse
monitoring circuit
Output buffer
DO
Voltage detector
SK
Clock generator
Figure 2
Instruction Sets
Table 2
Instruction
SK input clock
READ (Read data)
WRITE (Write data)
ERASE (Erase data)
WRAL (Write all)
ERAL (Erase all)
EWEN (Write enable)
EWDS (Write disable)
Start Bit
1
1
1
1
1
1
1
1
Operation Code
2
3
1
0
1
0
0
0
0
0
1
1
0
0
0
0
Address
4
5
6
7
8
9
10 11 12 13
Data
14 to 29
*1
A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 Output
A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 to D0 Input
A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
0
1
1
1
0
1
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
D15 to D0 Input
0 0 x x x x x x x x
*1.
When the 16-bit data in the specified address has been output, the data in the next address is output.
Remark
x: Doesn’t matter
Seiko Instruments Inc.
3
CMOS SERIAL E
2
PROM
S-93A86A
Absolute Maximum Ratings
Table 3
Rev.1.1
_00
Item
Symbol
Ratings
Unit
Power supply voltage
V
CC
V
−0.3
to
+7.0
Input voltage
V
IN
V
−0.3
to V
CC
+0.3
Output voltage
V
OUT
V
−0.3
to V
CC
Storage temperature
T
stg
−65
to
+150
°C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
Recommended Operating Conditions
Table 4
Item
Power supply voltage
Symbol
Condition
Min.
V
CC
READ/EWDS
2.7
WRITE/ERASE/
2.7
WRAL/ERAL/EWEN
V
IH
0.8
×
V
CC
V
IL
0.0
T
opr
−40
Typ.
Max.
5.5
5.5
V
CC
0.2
×
V
CC
+125
Unit
V
V
V
V
°C
High level input voltage
Low level input voltage
Operating temperature
Pin Capacitance
Table 5
Item
Input Capacitance
Output Capacitance
Symbol
Condition
C
IN
V
IN
=
0 V
C
OUT
V
OUT
=
0 V
(Ta
=
25°C, f
=
1.0 MHz, V
CC
=
5.0 V)
Min.
Typ.
Max.
Unit
8
pF
10
pF
4
Seiko Instruments Inc.
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