80C31 Datasheet, PDF (23/30 Pages) NXP Semiconductors – CMOS single-chip 8-bit microcontrollers

Philips Semiconductors
CMOS single-chip 8-bit microcontrollers
Product specification
80C31/80C51/87C51
EPROM PROGRAMMING AND VERIFICATION CHARACTERISTICS
T_amb = 21°C to +27°C, V_CC = 5V±10%, V_SS = 0V (See Figure 16)
SYMBOL
PARAMETER
MIN
V_PP
I_PP
1/t_CLCL
t_AVGL
t_GHAX
t_DVGL
t_GHDX
t_EHSH
t_SHGL
t_GHSL
t_GLGH
t_AVQV
t_ELQZ
t_EHQZ
t_GHGL
Programming supply voltage
Programming supply current
Oscillator frequency
Address setup to PROG low
Address hold after PROG
Data setup to PROG low
Data hold after PROG
P2.7 (ENABLE) high to V_PP
V_PP setup to PROG low
V_PP hold after PROG
PROG width
Address to data valid
ENABLE low to data valid
Data float after ENABLE
PROG high to PROG low
12.5
4
48t_CLCL
48t_CLCL
48t_CLCL
48t_CLCL
48t_CLCL
10
10
90
0
10
MAX
13.0
50
6
110
48t_CLCL
48t_CLCL
48t_CLCL
P1.0–P1.7
P2.0–P2.4
PORT 0
ALE/PROG
PROGRAMMING*
ADDRESS
t_DVGL
t_AVGL
t_GLGH
t_SHGL
DATA IN
t_GHDX
t_GHAX
t_GHGL
t_GHSL
VERIFICATION*
ADDRESS
t_AVQV
DATA OUT
EA/V_PP
P2.7
ENABLE
t_EHSH
LOGIC 0
LOGIC 1
t_ELQV
LOGIC 1
NOTE:
* FOR PROGRAMMING VERIFICATION SEE FIGURE 13.
FOR VERIFICATION CONDITIONS SEE FIGURE 15.
Figure 16. EPROM Programming and Verification
t_EHQZ
UNIT
V
mA
MHz
µs
µs
µs
µs
SU00020
1996 Aug 16
23