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37844

Features: ` Operating voltage: +5.0V` Programming voltage-VPP=12.5V0.2V -VCC=6.0V0.2V` High-reliability CMOS technology` Latch-up immunity to 100mA from -1.0V to VCC+1.0V` CMOS and TTL compatible I/O` Low power consumption -Active: 30mA max. -Standby: 1A typ.`256K16-bits organization` Fast rea...

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SeekIC No. : 004229147 Detail

37844: Features: ` Operating voltage: +5.0V` Programming voltage-VPP=12.5V0.2V -VCC=6.0V0.2V` High-reliability CMOS technology` Latch-up immunity to 100mA from -1.0V to VCC+1.0V` CMOS and TTL compatible ...

37844 Data Sheet

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Part Number:
37844
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Operating voltage: +5.0V
` Programming voltage
   - VPP=12.5V0.2V
   - VCC=6.0V0.2V
` High-reliability CMOS technology
` Latch-up immunity to 100mA from -1.0V to VCC+1.0V
` CMOS and TTL compatible I/O
` Low power consumption
   - Active: 30mA max.
   - Standby: 1A typ.
` 256K16-bits organization
` Fast read access time: 70ns
` Fast programming algorithm
` Programming time 75s typ.
` Two line controls (OE and CE)
` Standard product identification code
` Commercial temperature range (0C to +70C)
` 40-pin plastic DIP, 44-pin PLCC package


Pinout

Connection Diagram


Specifications

Operation Temperature Commercial............................................................................................0to +70
Storage Temperature...............................................................................................................-65 to 125
Applied VCC Voltage with Respect to VSS................................................................................. -0.6V to 7.0V
Applied Voltage on Input Pin with Respect to VSS.....................................................................-0.6V to 7.0V
Applied Voltage on Output Pin with Respect to VSS ..........................................................-0.6V to VCC+0.5V
Applied Voltage on A9 Pin with Respect to VSS .......................................................................-0.6V to 13.5V
Applied VPP Voltage with Respect to VSS.................................................................................-0.6V to 13.5V
Applied READ Voltage (Functionality is guaranteed between these limits) ............................+4.5V to +5.5V
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.


Description

The 37844 chip family is a low-power, 4096K (4,194,304) bits, +5V electrically one-time programmable (OTP) read-only memories (EPROM). Organized into 256K words with 16 bits per word, it features a fast single address location programming, typically at 75s per word. Any word can be accessed in less than 70ns with respect to spec. This eliminates the need for WAIT states in high-performance microprocessor systems.The 37844 has separate Output Enable (OE) and Chip Enable (CE) controls which eliminate bus contention issues.




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