GMS36140 View Datasheet(PDF) - Hyundai Micro Electronics

Part Name

Description

Manufacturer

GMS36140

4-BIT SINGLE CHIP MICROCOMPUTERS

Hyundai Micro Electronics 

Chapter 9. EPROM

Program / Verify Timing Diagrams In MHz Version.

1) EPROM Write & Verify Mode (1Byte)

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#. Note :

1. Internal system is reset at VPP = 12.5V and K2=`Low`

2. OSC1 is made of a block of 8 x Tp clock.

3. From this time when the reset is released (K2=`High`) , OSC1 clock is counted by 1-bolck.

4. If not written during 10 times repeats (120us), repeat the 5 times until all is written.

5. For device verify. If you set Lock bit, output data is always `0F`h.

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9-8

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