S-93C46B/56B/66B
3-WIRE SERIAL E2PROM
www.sii-ic.com
Rev.8.1_00
© Seiko Instruments Inc., 2002-2015
The S-93C46B/56B/66B is a high speed, low current consumption, 3-wire serial E2PROM with a wide operating voltage
range. The S-93C46B/56B/66B has the capacity of 1 K-bit, 2 K-bit and 4 K-bit, and the organization is 64-word × 16-bit,
128-word × 16-bit and 256-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
2.0 MHz (VCC = 4.5 V to 5.5 V)
8.0 ms max.
• Operation frequency:
• Write time:
• 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:
S-93C46B 1 K-bit
S-93C56B 2 K-bit
S-93C66B 4 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
• TMSOP-8
• SNT-8A
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.
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