Hitachi L32VK06U, Service Manual

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13 32K Smart Serial EEPROM – 24C32
13.1 General Description
The Microchip Technology Inc. 24C32 is a 4K x 8 (32K bit) Serial Electrically Erasable
PROM. This device has been developed for advanced, low power applications such as
personal communications or data acquisition. The 24C32 features an input cache for fast
write loads with a capacity of eight 8-byte pages, or 64 bytes. It also features a fixed 4K-
bit block of ultra-high endurance memory for data that changes frequently. The 24C32 is
capable of both random and sequential reads up to the 32K boundary. Functional address
lines allow up to eight 24C32 devices on the same bus, for up to 256K bits address
space. Advanced CMOS technology makes this device ideal for low-power non-volatile
code and data applications. The 24C32 is available in the standard 8-pin plastic DIP and
8-pin surface mount SOIC package.
13.2 Features
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Voltage operating range: 4.5V to 5.5V
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Peak write current 3 mA at 5.5V
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Maximum read current 150 μA at 5.5V
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Standby current 1 μA typical
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Industry standard two-wire bus protocol, I2C compatible
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Including 100 kHz and 400 kHz modes
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Self-timed write cycle (including auto-erase)
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Power on/off data protection circuitry
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Endurance: 10,000,000 Erase/Write cycles guaranteed for High Endurance Block,
1,000,000 E/W cycles guaranteed for Standard Endurance Block