FT93C66A数据手册集成电路（IC）的存储器规格书PDF

描述 Description

The FT
93
C
46/56/66
 series are 
1024/2048/4096
 bits of serial Electrical Erasable and Programmable Read Only Memory, commonly known as EEPROM. They are organized as
64/128/256
 words of 16 bits  each
 when the ORG pin is connected to VCC (or unconnected) and 128/256/512 words of 8 bits (1 byte) each when the ORG pin is tied to ground
.  The devices are fabricated with proprietary advanced CMOS process for low power and low voltage applications.  These devices are available in standard 8-lead PDIP, 8-lead JEDEC SOIC and 8-lead TSSOP packages. Our extended VCC range (1.8V to 5.5V) devices enables wide spectrum of applications.
The 
F
T93C46/56/66 is enabled through the Chip Select pin (CS), and accessed via a 3-wire serial interface consisting of Data Input (
DI
), Data Output (
DO
), and Shift Clock (S
CL
). Upon receiving a READ instruction at 
DI
, the address is decoded and the data is clocked out serially on the data output pin 
DO
. The WRITE cycle is completely self-timed and no separate ERASE cycle is required before WRITE. The WRITE cycle is only enabled when the part is in the ERASE/WRITE ENABLE state. 
Once a device begins its self-timed program procedure, the data out pin (DO) can indicate the READY/BUSY status by rising chip select (CS).

特性 Features

·q       Standard Voltage and Low Voltage Operation:
··FT93C46/56/66:       VCC = 2.5V to 5.5V
··FT93C46A/56A/66A:         VCC = 1.8V to 5.5V
·q       User Selectable Internal Organization:
··FT93C46:     128 x 8 or   64 x 16
··FT93C56:     256 x 8 or 128 x 16
··FT93C66:     512 x 8 or 256 x 16
·q       2 MHz Clock Rate (5V) Compatibility.
·q       Industry Standard 3-wire Serial Interface.
·q       Self-Timed ERASE/WRITE Cycles (5ms max including auto-erase).
·q       Automatic ERAL before WRAL.
·q       Sequential READ Function.
·q       High Reliability:  Typical 1 Million Erase/Write Cycle Endurance.
·q       100 Years Data Retention.
·q       Industrial Temperature Range (-40o C to 85o C).
·q       Standard 8-pin PDIP/SOIC/TSSOP Pb-free Packages.