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PDF S-93L76A Data sheet ( Hoja de datos )
| Número de pieza | S-93L76A | |
| Descripción | LOW VOLTAGE OPERATION CMOS SERIAL E2PROM | |
| Fabricantes | Seiko Instruments | |
| Logotipo |  |
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Rev.2.2_00
LOW VOLTAGE OPERATION
CMOS SERIAL E2PROM
www.datasheet4u.com
S-93L76A
The S-93L76A is a low voltage operating, high
speed, low current consumption, 8 K-bit serial
E2PROM with a wide operating voltage range. It is
organized as 512-word × 16-bit respectively. Each is
capable of sequential read, at which time addresses
are automatically incremented in 16-bit blocks.
Features
• Low current consumption
Standby: 2.0 µA Max. (VCC = 5.5 V)
Operating: 0.8 mA Max. (VCC = 5.5 V)
0.4 mA Max. (VCC = 2.5 V)
• Wide operating voltage range Read:
1.6 to 5.5 V
Write:
1.8 to 5.5 V (WRITE, ERASE)
2.7 to 5.5 V (WRAL, ERAL)
• Sequential read capable
• Write disable function when power supply voltage is low
• Endurance:
107 cycles/word* (at +25°C) write capable,
106 cycles/word* (at +85°C)
* For each address (Word: 16 bits)
• Data retention: 10 years (after rewriting 106 cycles/word at +85°C)
• S-93L76A:
8 K-bit
• Lead-free products
Packages
Package name
SNT-8A
8-Pin SOP(JEDEC)
8-Pin TSSOP
Package
PH008-A
FJ008-A
FT008-A
Drawing code
Tape
Reel
PH008-A
PH008-A
FJ008-D
FJ008-D
FT008-E
FT008-E
Land
PH008-A
Caution
This product is intended to use in general electronic devices such as consumer electronics,
office equipment, and communications devices. Before using the product in medical
equipment or automobile equipment including car audio, keyless entry and engine control
unit, contact to SII is indispensable.
Seiko Instruments Inc.
1
1 page  
Rev.2.2_00
LOW VOLTAGE OPERATION CMOS SERIAL E2PROM
S-93L76A
Absolute Maximum Ratings
www.datasheet4u.com
Parameter
Power supply voltage
Input voltage
Output voltage
Operating ambient temperature
Storage temperature
Table 5
Symbol
VCC
VIN
VOUT
Topr
Tstg
Ratings
−0.3 to +7.0
−0.3 to VCC +0.3
−0.3 to VCC
−40 to +85
−65 to +150
Unit
V
V
V
°C
°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 6
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
READ / EWDS
1.6
5.5
Power supply voltage VCC WRITE / ERASE / EWEN 1.8 5.5 V
WRAL / ERAL
2.7
5.5
High level input voltage VIH
Low level input voltage VIL
VCC = 4.5 to 5.5 V
VCC = 2.7 to 4.5 V
VCC = 1.6 to 2.7 V
VCC = 4.5 to 5.5 V
VCC = 2.7 to 4.5 V
VCC = 1.6 to 2.7 V
2.0
0.8 × VCC
0.8 × VCC
0.0
0.0
0.0
VCC
VCC
VCC
0.8
0.2 × VCC
0.15 × VCC
V
V
V
V
V
V
Pin Capacitance
Parameter
Input Capacitance
Output Capacitance
Table 7
Symbol
CIN
COUT
Conditions
VIN = 0 V
VOUT = 0 V
(Ta = 25°C, f = 1.0 MHz, VCC = 5.0 V)
Min. Typ. Max. Unit
8 pF
10 pF
Endurance
Parameter
Endurance
Symbol
NW
Table 8
Operation
Temperature
−40 to +85°C
Min. Typ. Max.
Unit
106
cycles/word*
* For each address (Word: 16 bits)
Seiko Instruments Inc.
5
5 Page 
Rev.2.2_00
LOW VOLTAGE OPERATION CMOS SERIAL E2PROM
S-93L76A
3. Write enable (EWEN) and write disable (EWDS)
The EWEN instruction is used to enable a write operation. The status in which a write operation is
enabled is called the program-enabled mode.
www.datasheet4Tuh.ceomEWDS instruction is used to disable a write operation. The status in which a write operation is
disabled is called the program-disabled mode.
The write operation is disabled upon power application and detection of a low supply voltage. To
prevent an unexpected write operation due to external noise or a CPU malfunctions, it should be kept in
write disable mode except when performing write operations, after power-on and before shutdown.
CS
SK 1 2 3 4 5 6 7 8 9 10 11 12 13
DI <1> 0 0
11=EWEN
00=EWDS
8Xs
Figure 11 Write Enable/Disable Timing
Stand by
Start Bit
A start bit is recognized by latching the high level of DI at the rising edge of SK after changing CS to high
(start bit recognition). A write operation begins by inputting the write instruction and setting CS to low.
Subsequently, by setting CS to high again, the DO pin outputs a low level if the write operation is still in
progress and a high level if the write operation is complete (verify operation). Therefore, only after a write
operation, in order to input the next command, CS is set to high, which switches the DO pin from a high-
impedance state (Hi-Z) to a data output state. However, if start bit is recognized, the DO pin returns to the
high-impedance state (refer to Figure 5 Timing Chart).
Make sure that data output from the CPU does not interfere with the data output from the serial memory IC
when configuring a 3 -wire interface by connecting the DI input pin and DO output pin, as such interference
may cause a start bit fetch problem. Take the measures described in “ 3-Wire Interface (Direct
Connection between DI and DO)”.
Seiko Instruments Inc.
11
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| PDF Descargar | [ Datasheet S-93L76A.PDF ] | |
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