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Número de pieza | S-93C76A | |
Descripción | 3-WIRE SERIAL E2PROM | |
Fabricantes | Seiko Instruments | |
Logotipo | ||
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No Preview Available ! S-93C76A H Series
www.sii-ic.com
© Seiko Instruments Inc., 2010-2015
FOR AUTOMOTIVE 105°C OPERATION
3-WIRE SERIAL E2PROM
Rev.3.1_00
The S-93C76A H Series is a high temperature operation 3-wire serial E2PROM for automotive components. The S-93C76A
H Series has the capacity of 8 K-bit, and the organizztion is 512-word × 16-bit respectively. It is capable of sequential read,
at which time addresses are automatically incremented in 16-bit blocks.
The communication method is by the Microwire bus.
Features
• Operating voltage range:
Read
2.7 V to 5.5 V (Ta = −40°C to +105°C)
Write
2.7 V to 5.5 V (Ta = −40°C to +105°C)
• Operation frequency:
1.0 MHz (VCC = 4.5 V to 5.5 V, Ta = −40°C to +105°C)
• Write time:
10.0 ms max.
• Sequential read capable
• Write protect function during the low power supply voltage
• Endurance:
106 cycles/word*1 (Ta = +85°C)
5 × 105 cycles/word*1 (Ta = +105°C)
• Data retention:
100 years (Ta = +25°C)
20 years (Ta = +105°C)
• Memory capacity:
8 K-bit
• Initial delivery state:
FFFFh
• Operation temperature range: Ta = −40°C to +105°C
• Lead-free (Sn 100%), halogen-free*2
*1. For each address (Word: 16-bit)
*2. Refer to “ Product Name Structure” for details.
Packages
• 8-Pin SOP (JEDEC)
• 8-Pin TSSOP
• TMSOP-8
Caution 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.3.1_00
FOR AUTOMOTIVE 105°C OPERATION 3-WIRE SERIAL E2PROM
S-93C76A H Series
Absolute Maximum Ratings
Table 5
Item
Symbol
Ratings
Unit
Power supply voltage
Input voltage
Output voltage
Operating ambient
temperature
VCC
VIN
VOUT
Topr
−0.3 to +7.0
−0.3 to VCC +0.3
−0.3 to VCC
−40 to +105
V
V
V
°C
Storage temperature
Tstg
−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 6
Item
Symbol
Conditions
−40 to +85°C
Min. Max.
+85 to +105°C
Min. Max.
READ, EWDS
1.8 5.5 2.7 5.5
Power supply voltage VCC WRITE, ERASE, EWEN 2.7 5.5 2.7 5.5
WRAL, ERAL
2.7 5.5 4.5 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 = 1.8 to 2.7 V
VCC = 4.5 to 5.5 V
VCC = 2.7 to 4.5 V
VCC = 1.8 to 2.7 V
2.0 VCC 2.0
0.8 × VCC VCC 0.8 × VCC
0.8 × VCC
VCC
⎯
0.0 0.8 0.0
0.0 0.2 × VCC 0.0
0.0 0.15 × VCC
⎯
VCC
VCC
⎯
0.8
0.2 × VCC
⎯
Unit
V
V
V
V
V
V
V
V
V
Pin Capacitance
Item
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. Max.
Unit
⎯8
pF
⎯ 10
pF
Endurance
Item
Symbol
Endurance
NW
*1. For each address (Word: 16 bits)
Table 8
Operating Ambient Temperature
−40 to +85°C
+85 to +105°C
Min.
106
5 × 105
Max.
⎯
⎯
Unit
cycles/word*1
cycles/word*1
Data Retention
Item
Data Retention
Symbol
⎯
Table 9
Operating Ambient Temperature
+25°C
−40 to +105°C
Min.
100
20
Max.
⎯
⎯
Unit
year
year
Seiko Instruments Inc.
5
5 Page Rev.3.1_00
FOR AUTOMOTIVE 105°C OPERATION 3-WIRE SERIAL E2PROM
S-93C76A H Series
2. Writing (WRITE, ERASE, WRAL, ERAL)
Write instructions (WRITE, ERASE, WRAL, and ERAL) are used to start writing data to the non-volatile memory by
making CS “L” after the specified number of clocks has been input.
The write operation is completed within the write time tPR (10 ms) no matter which write instruction is used. The
typical write time is less than half 10 ms. If the end of the write operation is known, therefore, the write cycle can
be minimized. To ascertain the end of a write operation, make CS “L” to start the write operation and then make
CS “H” again to check the status of the DO output pin. This series of operations is called a verify operation.
If DO outputs “L” during the verify operation period in which CS is “H”, it indicates that a write operation is in
progress. If DO outputs “H”, it indicates that the write operation is finished. The verify operation can be executed
as many times as required. This operation can be executed in two ways. One is detecting the positive transition
of DO output from “L” to “H” while holding CS at “H”. The other is detecting the positive transition of DO output
from “L” to “H” by making CS “H” once and checking DO output, and then returning CS to “L”.
During the write period, SK and DI are invalid. Do not input any instructions during this period. Input an
instruction while the DO pin is outputting “H” or is in a high-impedance state. Even while the DO pin is outputing
“H”, DO immediately goes into a high-impedance (High-Z) state if “H” of DI (start bit) is input at the rising edge of
SK.
Keep DI “L” during the verify operation period.
2. 1 Writing data (WRITE)
This instruction is used to write 16-bit data to a specified address.
After making CS “H”, input a start bit, the WRITE instruction, an address, and 16-bit data. If data of more than
16 bits is input, the written data is sequentially shifted at each clock, and the 16 bits input last are the valid
data. The write operation is started when CS is made “L”. It is not necessary to set data to “1” before it is
written.
tCDS
CS Verify Standby
SK
1 2 3 4 5 6 7 8 9 10 11 12 13 14
29
DI
<1> 0 1 X A8 A7 A6 A5 A4 A3 A2 A1 A0 D15
D0
DO High-Z
tSV tHZ1
busy ready
tPR High-Z
Figure 7 Data Write Timing
2. 2 Erasing data (ERASE)
This instruction is used to erase specified 16-bit data. All the 16 bits of the data are “1”. After making CS
“H”, input a start bit, the ERASE instruction, and an address. It is not necessary to input data. The data
erase operation is started when CS is made “L”.
tCDS
CS Verify Standby
SK 1 2 3 4 5 6 7 8 9 10 11 12 13
DI <1> 1 1 X A8 A7 A6 A5 A4 A3 A2 A1 A0
DO High-Z
tSV tHZ1
busy ready
tPR High-Z
Figure 8 Data Erase Timing
Seiko Instruments Inc.
11
11 Page |
Páginas | Total 28 Páginas | |
PDF Descargar | [ Datasheet S-93C76A.PDF ] |
Número de pieza | Descripción | Fabricantes |
S-93C76A | 3-WIRE SERIAL E2PROM | Seiko Instruments |
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