Z86E09 Datasheet, PDF (20/38 Pages) Zilog, Inc. – Z8 CMOS OTP Microcontrollers

Z86E02/E04/E08/E09 SL1995
Z8 CMOS OTP Microcontrollers
15
14. Repeat Steps 5 to 12 until the last address is read.
15. Because the address is sequentially accessed, a previously-accessed
address can only be programmed or read by resetting the address counter to
0000h and clocking the address counter to increment to the appropriate
address.
Figure 10. EPROM ARRAY PROGRAM AND VERIFY Functional Timing
5V
V_{CC 0V}
V_IH
CLEAR
V_IL
V_IH
EPM
V_IL
CE ^VIH
V_IL
V_PP ^VIH
V_IL
CLOCK ^VIH
V_IL
OE ^VIH
V_IL
PGM ^VIH
V_IL
3 x N x 1ms
Data
(Port 2)
Data In
Data
Out
Data In
Internal
Address
0000h
0001h
Table 9. EPROM ARRAY PROGRAM AND VERIFY Mode Conditions
EPROM Signal
D0–D3
D4–D7
GND
V_CC
CE
18-Pin DIP/SOIC
Pins 15, 16, 17, 18
Pins 1, 2, 3, 4
Pin 14
Pin 5
Pin 7
20-Pin SSOP
Pins 17, 18, 19, 20
Pins 1, 2, 3, 4
Pins 15, 16
Pins 5, 6
Pin 8
Forced State
See Figure 10
See Figure 10
GND
5V
V_IL
PS009201-0301
Programming Specification