DESCRIPTION

The Microchip Technology Inc. 28C17A is a CMOS 16K nonvolatile electrically Erasable PROM. The 28C17A is accessed like a static RAM for the read or write cycles without the need of external components. During a “byte write”, the address and data are latched internally, freeing the microprocessor address and data bus for other operations. Following the initiation of write cycle, the device will go to a busy state and automatically clear and write the latched data using an internal control timer.

FEATURES

? Fast Read Access Time—150 ns

? CMOS Technology for Low Power Dissipation

- 30 mA Active

- 100 μA Standby

? Fast Byte Write Time—200 μs or 1 ms

? Data Retention >200 years

? High Endurance - Minimum 104 Erase/Write Cycles

? Automatic Write Operation

- Internal Control Timer

- Auto-Clear Before Write Operation

- On-Chip Address and Data Latches

? Data Polling; Ready/Busy

? Chip Clear Operation

? Enhanced Data Protection

- VCC Detector

- Pulse Filter

- Write Inhibit

? Electronic Signature for Device Identification

? 5-Volt-Only Operation

? Organized 2Kx8 JEDEC Standard Pinout

- 28 Pin Dual-In-Line Package

- 32-Pin PLCC Package

- 28-Pin Thin Small Outline Package (TSOP) 8x20mm

- 28-Pin Very Small Outline Package (VSOP) 8x13.4mm

? Available for Extended Temperature Ranges:

- Commercial: 0?C to +70?C

Industrial: -40?C to +85?C