深圳市广辉电子有限公司

说明

The TMS27C128 series are 131072-bit, ultraviolet-light erasable, electrically programmable read-only memories.

The TMS27PC128 series are 131072-bit, one time electrically programmable read-only memories.

These devices are fabricated using power-saving CMOS technology for high speed and simple interface with MOS and bipolar circuits. All inputs (including program data inputs) can be driven by Series 74 TTL circuits without the use of external pull-up resistors. Each output can drive one Series 74 TTL circuit without external resistors.

The data outputs are three-state for connecting multiple devices to a common bus. The TMS27C128 and the TMS27PC128 are pin compatible with 28-pin 128K MOS ROMs, PROMs, and EPROMs.

特性

This Data Sheet is Applicable to All
TMS27C128s and TMS27PC128s Symbolized
with Code "B" as Described on Page 12.

• Organization...16K × 8
• Single 5-V Power Supply
• Pin Compatible With Existing 128K MOS
  ROMs, PROMs, and EPROMs
• All Inputs/Outputs Fully TTL Compatible
• Max Access/Min Cycle Times
  V_CC ± 10%
  
• Power Saving CMOS Technology
• Very High-Speed SNAP! Pulse Programming
• 3-State Output Buffers
• 400-mV Minimum DC Noise Immunity With Standard TTL Loads
• Latchup Immunity of 250 mA on All Input and Output Lines
• Low Power Dissipation (V_CC = 5.25 V)
  • Active...158 mW Worst Case
  • Standby...1.4 mW Worst Case
    (CMOS Input Levels)
• PEP4 Version Available With 168-Hour Burn-In and Choices of Operating Temperature Ranges
• 128K EPROM Available With MIL-STD-883C Class B High-Reliability Processing (SMJ27C128)