AT28C010-12JU SL383 Microchip

Features Fast Read Access Time 120 ns  Automatic Page Write Operation Internal Address and Data Latches for 128 Bytes Internal Control Timer  Fast Write Cycle Time Page Write Cycle Time 10 ms Maximum 1 to 128-byte Page Write Operation  Low Power Dissipation 1-megabit 40 mA Active Current 200 A CMOS Standby Current (128K x 8)  Hardware and Software Data Protection  DATA Polling for End of Write Detection Paged Parallel  High Reliability CMOS Technology 4 5 Endurance: 10 or 10 Cycles EEPROM Data Retention: 10 Years  Single 5V 10% Supply  CMOS and TTL Compatible Inputs and Outputs AT28C010  JEDEC Approved Byte-wide Pinout  Commercial and Industrial Temperature Ranges  Green (Pb/Halide-free) Packaging Option 1. Description The AT28C010 is a high-performance electrically-erasable and programmable read- only memory. Its 1 megabit of memory is organized as 131,072 words by 8 bits. Man- ufactured with Atmels advanced nonvolatile CMOS technology, the device offers access times to 120 ns with power dissipation of just 220 mW. When the device is deselected, the CMOS standby current is less than 200 A. The AT28C010 is accessed like a Static RAM for the read or write cycle without the need for external components. The device contains a 128-byte page register to allow writing of up to 128 bytes simultaneously. During a write cycle, the address and 1 to 128 bytes of data are internally latched, freeing the address and data bus for other operations. Following the initiation of a write cycle, the device will automatically write the latched data using an internal control timer. The end of a write cycle can be detected by DATA polling of I/O7. Once the end of a write cycle has been detected a new access for a read or write can begin. Atmels 28C010 has additional features to ensure high quality and manufacturability. The device utilizes internal error correction for extended endurance and improved data retention characteristics. An optional software data protection mechanism is available to guard against inadvertent writes. The device also includes an extra 128 bytes of EEPROM for device identification or tracking. 0353FPEEPR04/05 AT28C010 2. Pin Configurations Pin Name Function A0 - A16 Addresses CE Chip Enable OE Output Enable WE Write Enable I/O0 - I/O7 Data Inputs/Outputs NC No Connect DC Dont Connect 2.1 32-lead TSOP Top View 2.3 32-lead PLCC Top View A11 1 32 OE A9 2 31 A10 A8 3 30 CE A7 5 29 A14 A13 4 29 I/O7 A6 6 28 A13 A14 5 28 I/O6 A5 7 27 A8 NC 6 27 I/O5 A4 8 26 A9 WE 7 26 I/O4 A3 9 25 A11 VCC 8 25 I/O3 A2 10 24 OE NC 9 24 GND A16 10 23 I/O2 A1 11 23 A10 A15 11 22 I/O1 A0 12 22 CE A12 12 21 I/O0 I/O0 13 21 I/O7 A7 13 20 A0 A6 14 19 A1 A5 15 18 A2 A4 16 17 A3 Note: PLCC package pin 1 is Dont Connect. 2.2 32-lead PDIP Top View NC 1 32 VCC A16 2 31 WE A15 3 30 NC A12 4 29 A14 A7 5 28 A13 A6 6 27 A8 A5 7 26 A9 A4 8 25 A11 A3 9 24 OE A2 10 23 A10 A1 11 22 CE A0 12 21 I/O7 I/O0 13 20 I/O6 I/O1 14 19 I/O5 I/O2 15 18 I/O4 GND 16 17 I/O3 2 0353FPEEPR04/05 I/O1 14 4 A12 I/O2 15 3 A15 GND 16 2 A16 I/O3 17 1 DC I/O4 18 32 VCC I/O5 19 31 WE I/O6 20 30 NC