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PDF S-93C86BD4I-T8T1U Data sheet ( Hoja de datos )
| Número de pieza | S-93C86BD4I-T8T1U | |
| Descripción | 3-WIRE SERIAL E2PROM | |
| Fabricantes | Seiko Instruments | |
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S-93C86B
www.sii-ic.com
© Seiko Instruments Inc., 2003-2015
3-WIRE SERIAL E2PROM
Rev.5.0_01
The S-93C86B is a high speed, low current consumption, 3-wire serial E2PROM with a wide operating voltage range. The S-
93C86B has the capacity of 16 K-bit, and the organization is 1024-word × 16 bit. 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
1.8 V to 5.5 V
Write
2.7 V to 5.5 V
• Operation frequency:
• Write time:
2.0 MHz (VCC = 4.5 V to 5.5 V)
4.0 ms max.
• Sequential read capable
• Write protect function during the low power supply voltage
• Function to protect against write due to erroneous instruction recognition
• Endurance:
106 cycles / word*1 (Ta = +85°C)
• Data retention:
100 years (Ta = +25°C)
20 years (Ta = +85°C)
• Memory capacity:
16 K-bit
• Initial delivery state:
FFFFh
• Operation temperature range: Ta = −40°C to +85°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
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.5.0_01
3-WIRE SERIAL E2PROM
S-93C86B
Absolute Maximum Ratings
Table 4
Item Symbol
Ratings
Unit
Power supply voltage
VCC
−0.3 to +7.0
V
Input voltage
VIN
−0.3 to VCC + 0.3
V
Output voltage
VOUT
−0.3 to VCC
V
Operation ambient temperature Topr
−40 to +105
°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 5
Item
Symbol
Conditions
Power supply voltage
High level input voltage
Low level input voltage
READ, EWDS
VCC WRITE, ERASE,
WRAL, ERAL, EWEN
VCC = 4.5 V to 5.5 V
VIH VCC = 2.7 V to 4.5 V
VCC = 1.8 V to 2.7 V
VCC = 4.5 V to 5.5 V
VIL VCC = 2.7 V to 4.5 V
VCC = 1.8 V to 2.7 V
Pin Capacitance
Table 6
Item
Input Capacitance
Output Capacitance
Symbol
CIN
COUT
Conditions
VIN = 0 V
VOUT = 0 V
Endurance
Table 7
Item Symbol Operation Ambient Temperature
Endurance
NW Ta = −40°C to +85°C
*1. For each address (Word: 16-bit)
Data Retention
Item
Data retention
Symbol
⎯
Table 8
Operation Ambient Temperature
Ta = +25°C
Ta = −40°C to +85°C
Ta = −40°C to +85°C
Min. Max.
1.8 5.5
2.7 5.5
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
Unit
V
V
V
V
V
V
V
V
(Ta = +25°C, f = 1.0 MHz, VCC = 5.0 V)
Min. Max. Unit
⎯ 8 pF
⎯ 10 pF
Min.
106
Max.
⎯
Unit
Cycles / word*1
Min. Max.
100 ⎯
20 ⎯
Unit
year
year
Seiko Instruments Inc.
5
5 Page 
Rev.5.0_01
3-WIRE SERIAL E2PROM
S-93C86B
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 a low level is
input to CS after a specified number of clocks have been input. The SK and DI 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 high or high impedance (High-Z).
A write operation is valid only in program enable mode (refer to “5. Write enable (EWEN) and write disable
(EWDS)”).
4. 1 Verify operation
A write operation executed by any instruction is completed within 4 ms (write time tPR: typically 2 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
After the write operation has started (CS = low), the status of the write operation can be verified by
confirming the output status of the DO pin by inputting a high level to CS again. This sequence is
called a verify operation, and the period that a high level is input to the CS pin after the write operation
has started is called the verify operation period.
The relationship between the output status of the DO pin and the write operation during the verify
operation period is as follows.
• DO pin = low: Writing in progress (busy)
• DO pin = high: Writing completed (ready)
4. 1. 2 Operation example
There are two methods to perform a verify operation: Waiting for a change in the output status of the
DO pin while keeping CS high, or suspending the verify operation (CS = low) once and then performing
it again to verify the output status 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 a low level to the DI pin during a verify operation.
2. If a high level is input to the DI pin at the rise of SK when the output status of the DO pin is
high, the S-93C86B latches the instruction assuming that a start bit has been input. In this
case, note that the DO pin immediately enters a high-impedance (High-Z) state.
Seiko Instruments Inc.
11
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