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PDF S-93S46A Data sheet ( Hoja de datos )

Número de pieza S-93S46A
Descripción 3-WIRE SERIAL E2PROM
Fabricantes Seiko Instruments 
Logotipo Seiko Instruments Logotipo



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S-93S46A/56A/66A
www.sii-ic.com
© Seiko Instruments Inc., 2010-2014
150°C OPERATION
3-WIRE SERIAL E2PROM FOR AUTOMOTIVE
Rev.2.1_00
This IC is a high temperature operation 3-wire serial E2PROM for automotive components. This IC has the capacity of 1 K-bit,
2 K-bit and 4 K-bit, and the organization is 64 words × 16-bit, 128 words × 16-bit and 256 words × 16-bit, respectively.
Sequential read is available, at which time addresses are automatically incremented in 16-bit blocks. The communication
method is by the Microwire bus.
Caution Before using the product in automobile control unit or medical equipment, contact to SII is indispensable.
This IC is regulated by the relevant Japanese laws and regulations, and may not be exported from Japan
without Japanese government approval.
Features
Package
Operation voltage range
Read:
4.0 V to 5.5 V (Ta = 40°C to +150°C)
Write:
4.0 V to 5.5 V (Ta = 40°C to +150°C)
Operation frequency:
1 MHz
(4.5 V to 5.5 V, Ta = 40°C to +150°C)
Write time:
10.0 ms max.
Sequential read
Write protect function during the low power supply voltage
Function to protect against write due to erroneous instruction recognition
CMOS schmitt input (CS, SK)
Endurance*1:
2 × 105 cycle / word*2 (Ta = +150°C)
Data retention:
100 years (Ta = +25°C)
50 years (Ta = +125°C)
20 years (Ta = +150°C)
Memory capacity
S-93S46A:
1 K-bit
S-93S56A:
2 K-bit
S-93S66A:
4 K-bit
Initial delivery state:
FFFFh
Burn-in specification:
Wafer level burn-in
Operation temperature range:
Ta = 40°C to +150°C
Lead-free (Sn 100%), halogen-free
AEC-Q100 in process*3
8-Pin SOP (JEDEC)
5
8
4
1
(5.0 × 6.0 × t1.75 mm)
*1. Refer to "Endurance" for details.
*2. For each address (Word: 16-bit)
*3. Contact our sales office for details.
Remark Refer to "3. Product name list" in "Product Name Structure" for details of package and product.
Seiko Instruments Inc.
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S-93S46A pdf
Rev.2.1_00
150°C OPERATION 3-WIRE SERIAL E2PROM FOR AUTOMOTIVE
S-93S46A/56A/66A
Absolute Maximum Ratings
Table 1
Item Symbol
Absolute Maximum Rating
Unit
Power supply voltage
Input voltage
Output voltage
Operation ambient temperature
Storage temperature
VCC
VIN
VOUT
Topr
Tstg
0.3 to +6.5
0.3 to +6.5
0.3 to VCC
40 to +150
65 to +150
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 2
Item Symbol
Condition
Power supply voltage VCC
High level input voltage VIH
Low level input voltage VIL
READ, EWDS
WRITE, ERASE, WRAL, ERAL, EWEN
Ta = 40°C to +150°C
Min. Max.
4.0 5.5
4.0 5.5
0.8 × VCC
0.0
VCC
0.2 × VCC
Unit
V
V
V
V
Pin Capacitance
Item
Input capacitance
Output capacitance
Symbol
CIN
COUT
VIN = 0 V
VOUT = 0 V
Table 3
Condition
(Ta = +25°C, f = 1.0 MHz, VCC = 5.0 V)
Min.
Max.
Unit
8 pF
10 pF
Endurance
Item Symbol
Endurance
NW
*1. For each address (Word: 16-bit)
Table 4
Operation Ambient Temperature
Ta = 40°C to +85°C
Ta = 40°C to +105°C
Ta = 40°C to +125°C
Ta = 40°C to +150°C
Min.
106
8 × 105
5 × 105
2 × 105
Max.
Unit
cycle / word*1
cycle / word*1
cycle / word*1
cycle / word*1
Data Retention
Item
Data retention
Table 5
Symbol
Operation Ambient Temperature
Min.
Max.
Ta = +25°C
Ta = 40°C to +125°C
Ta = 40°C to +150°C
100
50
20
Unit
year
year
year
Seiko Instruments Inc.
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S-93S46A arduino
Rev.2.1_00
150°C OPERATION 3-WIRE SERIAL E2PROM FOR AUTOMOTIVE
S-93S46A/56A/66A
4. Writing (WRITE, ERASE, WRAL, ERAL)
A write operation includes four write instructions: data write (WRITE), data erase (ERASE), chip write (WRAL), and
chip erase (ERAL).
A write instruction (WRITE, ERASE, WRAL, ERAL) starts a write operation to the memory cell when "L" is input to the
CS pin after a specified number of clocks have been input. The SK pin and the DI pin inputs are invalid during the
write period, so do not input an instruction.
Input an instruction while the output status of the DO pin is "H" or "High-Z".
A write operation is valid only in program enable mode (refer to "5. Write enable (EWEN) / write disable (EWDS)").
4. 1 Verify operation
A write operation executed by any instruction is completed within 8 ms (write time tPR: typically 4 ms), so if the
completion of the write operation is recognized, the write cycle can be minimized. A sequential operation to
confirm the status of a write operation is called a verify operation.
4. 1. 1 Operation method
After the write operation has started (CS pin = "L"), the status of the write operation can be verified by
confirming the output status of the DO pin by inputting "H" to the CS pin again. This sequence is called a verify
operation, and the period that "H" is input to the CS pin after the write operation has started is called the verify
operation period.
DO pin = "L":
DO pin = "H":
Writing in progress (busy)
Writing completed (ready)
4. 1. 2 Operation example
There are two methods to perform a verify operation: Waiting for a change in the output of the DO pin while
keeping the CS pin "H", or suspending the verify operation (CS pin = "L") once and then performing it again to
verify the output of the DO pin. The latter method allows the CPU to perform other processing during the wait
period, allowing an efficient system to be designed.
Caution 1. Input "L" to the DI pin during a verify operation.
2. If "H" is input to the DI pin at the rising of the SK when the output status of the DO pin is "H",
this IC latches the instruction assuming that a start bit has been input. In this case, note that
the DO pin immediately enters "High-Z".
Seiko Instruments Inc.
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