IS89C51 Datasheet, PDF (39/48 Pages) Integrated Silicon Solution, Inc – CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 4-Kbytes of FLASH

IS89C51
ISSI ^®
FLASH PROGRAMMING AND VERIFICATION CHARACTERISTICS AND WAVEFORMS
Table 14. Flash Programming and Verification Characteristics⁽¹⁾
Symbol
VPP
1/tCLCL
tAVGL
tGHAX
tDVGL
tGHDX
tEHSH
tSHGL
tGHSL
tGLGH
tGHGL
tAVQV
tELQV
tEHQZ
tGLGHE
tELPL
tPLPH
tPHEH
tEHVH
Parameter
Programming Supply Voltage
Oscillator Frequency
Address Setup to PROG Low
Address Hold after PROG
Data Setup to PROG Low
Data Hold after PROG
COND ENABLE to VPPH
VPPH Setup to PROG Low
VPPH Hold after PROG
PROG Pulse Width
PROG High to PROG Low
Address to Data Valid
COND ENABLE to Data Valid
Data Float after COND DISABLE
Erase PROG Pulse Width
COND DISABLE to Power Low
Power Off Time
Power On to VPPL
VPPL to COND ENABLE
Min
11.5
3.5
48
48
48
48
48
10
10
120
10
—
—
—
200
0
10
10
0
Max
12.5
12
—
—
—
—
—
—
—
—
—
48
48
48
—
—
—
—
—
Unit
V
MHz
tCLCL
tCLCL
tCLCL
tCLCL
tCLCL
µs
µs
µs
µs
tCLCL
tCLCL
tCLCL
ms
ns
µs
ms
ns
Notes:
1. TA = 21°C to 27°C, Vcc = 5.0V ± 10%.
2. COND ENABLE and COND DISABLE are generated and depend on the control signals on pins P2.6,
P2.7, P3.6 and P3.7. The signals set the device in to and out of different processing conditions, such
as programming condition, erasing condition, and verify condition.
Integrated Silicon Solution, Inc. — 1-800-379-4774
39
MC016-1C
11/21/98