SMJ27C512 65536 BY 8-BIT UV ERASABLE PROGRAMMABLE READ-ONLY MEMORY

SGMS019D - SEPTEMBER 1987 - REVISED OCTOBER 1997

features

Organization ...65536 by 8 Bits
High-Reliability MIL-PRF-38535 Processing
Single 5-V Power Supply
Pin-Compatible With Existing 512K Read-Only Memories (ROMs) and Electrically Programmable Read-Only Memories (EPROMs)
All Inputs/Outputs Fully TTL-Compatible
Max Access/Min Cycle Times
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 (CMOS Input Levels)
- Active...193 mW (Max)
- Standby...1.7 mW (Max)
Military Operating Case Temperature Range - 55°C to 125°C

description

The SMJ27C512 is a set of 65536 by 8-bit (524288-bit), ultraviolet (UV) light erasable, 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 54 TTL circuits without the use of external pullup resistors. Each output can drive one Series 54 TTL circuit without external resistors. The data outputs are 3-state for connecting multiple devices to a common bus. The SMJ27C512 is pin-compatible with existing 28-pin 512K ROMs and EPROMs. It is offered in a 600-mil dual-in-line ceramic package (J suffix) rated for operation from - 55°C to 125°C, the operating case temperature range (T_C).

Because this EPROM operates from a single 5-V supply (in the read mode), it is ideal for use in microprocessor-based systems. One other supply (13 V) is needed for programming. All programming signals are TTL level. This device is programmable by the SNAP! Pulse programming algorithm. The SNAP! Pulse programming algorithm uses a V_PP of 13 V and a V_CC of 6.5 V for a nominal programming time of seven seconds. For programming outside the system, existing EPROM programmers can be used. Locations may be programmed singly, in blocks, or at random.

Title: 65536 BY 8-BIT UV ERASABLE PROGRAMMABLE READ-ONLY MEMORY
Product Family: EPROM
Device Functionality: EPROM-512K(64KX8)
Orderable Devices: SMJ27C512-15JM, SMJ27C512-20JM, SMJ27C512-25JM

View the complete PDF datasheet: sgms019d.pdf (153 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SMJ27C512

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