參數(shù)資料
型號(hào)： PCB2421T
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： PROM
英文描述： 1K dual mode serial EEPROM
中文描述： 128 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8
封裝： 3.90 MM, PLASTIC, MS-012AA, SOT-96-1, SOP-8
文件頁(yè)數(shù)： 3/24頁(yè)
文件大?。?/td> 112K
代理商： PCB2421T
1997 Apr 01
3
Philips Semiconductors
Preliminary specification
1K dual mode serial EEPROM
PCB2421
1
FEATURES
Single supply with operation 4.5 to 5.5 V
Completely implements DDC1/DDC2B interface for
monitor identification
Low power CMOS technology
Two-wire I
2
C-bus interface
Self-timed write cycle (including auto-erase)
Page-write buffer for up to 8 bytes
Write-protect pin
100 kHz I
2
C-bus compatibility
Designed for 10000 erase/write cycles minimum
Data retention greater than 10 years
8-pin DIP and SO package
Temperature range 0 to +70
°
C.
2
GENERAL DESCRIPTION
The Philips PCB2421 is a 128
×
8-bit dual mode serial
Electrically Erasable PROM (EEPROM).
This device is designed for use in applications requiring
storage and serial transmission of configuration and
control information. Two modes of operation have been
implemented: transmit-only mode (DDC1 mode) and
bidirectional mode (DDC2B, or I
2
C-bus mode). Upon
power-up, the device will be in the transmit-only mode,
sending a serial bitstream of the entire memory array
contents, clocked by the VCLK pin. A valid HIGH-to-LOW
transition on the SCL pin will cause the device to enter the
bidirectional mode, with byte selectable read/write
capability of the memory array. The PCB2421 is available
in a standard 8-pin dual in-line and 8-pin small outline
package operating in a commercial temperature range.
3
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
PCB2421P
PCB2421T
DIP8
SO8
plastic dual in-line package; 8 leads (300 mil)
plastic small outline package; 8 leads; body width 3.9 mm
SOT97-1
SOT96-1
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