IC89LV52 Datasheet, PDF (21/22 Pages) Integrated Circuit Solution Inc – CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8(4)-Kbytes of FLASH

IC89LV52(51)A
P2.3-P2.0
P1.7-P1.0
ERASE
SETUP CYCLE
ERASE CYCLE ERASE VERIFY
ERASE
SETUP CYCLE VERIFY CYCLE
ADDRESS IN
tAVQV
tAXQX
P0
tDVCL
P2.6
(Command Setup)
20H
D0H
A0H
DATA OUT
tCHDX tDVGL
tGHDX tDVCL
tCHDX
tCLCH
tCLCH
tELQV
tEHQX
P2.7(OE)
PROG
VPP
tSHGL
tGLGH
tGHSL
Figure 18. Erase Timing Waveform
Vcc — 0.5V
0.45V
0.7Vcc
0.2Vcc — 0.1
tCHCL
tCLCX
tCHCX
tCLCH
tCLCL
Figure 19. External Clock Drive Waveform
Vcc - 0.5V
0.45V
0.2Vcc + 0.9V
0.2Vcc - 0.1V
Figure 20. AC Test Point
Note:
1.AC inputs during testing are driven at Vcc-0.5v for logic “1” and 0.45V for logic “0”.
Timing measurements are made at Vih min for logic “1” and max for logic “0”.
Integrated Circuit Solution Inc.
21
MC010-0D 11/16/2001