Part Number: 93LC56AT

Function: 2K, Microwire Compatible Serial EEPROM

Package: SOIC 8 Pin Type

Manufacturer: Microchip Technology

Pinouts:

 

Description

This is 2K, 2.5V, Microwire Serial EEPROM.

The Microchip Technology Inc. The 93LC56AT, 93LC56B, 93LC56C devices are 2Kbit low-voltage serial Electrically Erasable PROMs (EEPROM). Word-selectable devices such as the 93AA56C, 93LC56C or 93C56C are dependent upon external logic levels driving the ORG pin to set word size.

When the ORG pin (93XX56C) pin is connected to VCC, the (x16) organization is selected. When it is connected to ground, the (x8) organization is selected.

Instructions, addresses and write data are clocked into the DI pin on the rising edge of the clock (CLK). The DO pin is normally held in a High-Z state except when reading data from the device, or when checking the Ready/ Busystatus during a programming operation.

The Ready/Busystatus can be verified during an Erase/Write operation by polling the DO pin; DO low indicates that programming is still in progress, while DO high indicates the device is ready. DO will enter the High-Z state on the falling edge of CS.

 

Features

1. Low-Power CMOS Technology

2. ORG Pin to Select Word Size for ‘56C’ Version

3. 256 x 8-bit Organization ‘A’ Version (no ORG)

4. 128 x 16-bit Organization ‘B’ Version (no ORG)

5. Self-Timed Erase/Write Cycles (including Auto-Erase)

6. Automatic Erase All (ERAL) before Write All (WRAL)

7. Power-On/Off Data Protection Circuitry

Other data sheets are available within the file:

93AA56A, 93AA56B, 93AA56C, 93AA56P, 93AA56SN, 93LC56AX, 93LC56AXT

 

93LC56AT Datasheet PDF Download

Part Number: AT49F001-90PI

Function: 1-Megabit (128K x 8) 5-volt only Flash Memory, 50mA active, 0.3mA standby

Package: DIP 32 Pin, PLCC 32 Pin, TSSOP 32 Pin Type

Manufacturer: Atmel Corporation

Pinouts:

Description

The AT49F001-90PI is a 5-volt only in-system reprogrammable Flash memory. Its 1 megabit of memory is organized as 131,072 words by 8 bits.

Manufactured with Atmel’s advanced  nonvolatile CMOS technology, the device offers access times to 55 ns with power dissipation of just 275 mW over the commercial temperature range. When the device is deselected, the CMOS standby current is less than 100 µA. For the AT49F001N(T) pin 1 for the DIP and PLCC packages and pin 9 for the TSOP package are don’t connect pins.

 

Features

1. Single Voltage Operation
(1) 5V Read
(2) 5V Reprogramming

2. Fast Read Access Time – 55 ns

3. Internal Program Control and Timer

4. Sector Architecture

(1) One 16K Bytes Boot Block with Programming Lockout
(2) Two 8K Bytes Parameter Blocks
(3) Two Main Memory Blocks (32K, 64K Bytes)

5. Fast Erase Cycle Time – 10 Seconds

6. Byte-by-byte Programming – 10 µs/Byte Typical

7. Hardware Data Protection

8. DATA Polling for End of Program Detection

 

Other data sheets are available within the file:

AT49F001, AT49F001-12JC, AT49F001-12JI, AT49F001-12PC, AT49F001-12PI

 

AT49F001-90PI Datasheet PDF Download