Z86E02SL1995 View Datasheet(PDF) - Zilog

Part Name

Description

Manufacturer

Z86E02SL1995

Z8 CMOS OTP Microcontrollers

Zilog 

Z86E02/E04/E08/E09 SL1995

Z8 CMOS OTP Microcontrollers

10

EPROM Array Modes

EPROM ARRAY READ/WRITE Mode Entry

1. To enter EPROM ARRAY READ/WRITE mode, all pins must be set as per

Table 7.

2. EPM is lowered to VIL.

3. OE is lowered to VIL.

4. The VPP is raised to VIH.

5. The CLEAR is pulsed High to VIH and back down to VIL.

6. The VPP is lowered to VIL.

7. After a delay of at least 1µsec minimum, the VPP is raised to VIH.

8. OE is raised to VIH.

9. EPM is raised to VIH.

10. The device now operates in EPROM ARRAY READ/WRITE mode. See

Figure 8.

Note: The delay between edges should be 1µsec minimum unless specified in

the timing specification in Table 14.

PS009201-0301

Programming Specification

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