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Philips Semiconductors
Product data
P87C51RA2/RB2/RC2/RD2
80C51 8-bit microcontroller family 8KB/16KB/32KB/64KB OTP
with 512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high
speed (30/33 MHz)
2003 Jan 24
58
EPROM PROGRAMMING AND VERIFICATION CHARACTERISTICS
Tamb = 21°C to +27°C, VCC = 5V±10%, VSS = 0V (See Figure 50)
SYMBOL
PARAMETER
MIN
MAX
UNIT
VPP
Programming supply voltage
12.5
13.0
V
IPP
Programming supply current
50 1
mA
1/tCLCL
Oscillator frequency
4
6
MHz
tAVGL
Address setup to PROG low
48tCLCL
tGHAX
Address hold after PROG
48tCLCL
tDVGL
Data setup to PROG low
48tCLCL
tGHDX
Data hold after PROG
48tCLCL
tEHSH
P2.7 (ENABLE) high to VPP
48tCLCL
tSHGL
VPP setup to PROG low
10
s
tGHSL
VPP hold after PROG
10
s
tGLGH
PROG width
90
110
s
tAVQV
Address to data valid
48tCLCL
tELQZ
ENABLE low to data valid
48tCLCL
tEHQZ
Data float after ENABLE
0
48tCLCL
tGHGL
PROG high to PROG low
10
s
NOTE:
1. Not tested.
PROGRAMMING
*
VERIFICATION
*
ADDRESS
DATA IN
DATA OUT
LOGIC 1
LOGIC 0
tAVQV
tEHQZ
tELQV
tSHGL
tGHSL
tGLGH
tGHGL
tAVGL
tGHAX
tDVGL
tGHDX
P1.0–P1.7
P2.0–P2.5
P3.4
(A0 – A14)
PORT 0
P0.0 – P0.7
(D0 – D7)
ALE/PROG
EA/VPP
P2.7
**
SU00871
tEHSH
NOTES:
*
FOR PROGRAMMING CONFIGURATION SEE FIGURE 47.
FOR VERIFICATION CONDITIONS SEE FIGURE 49.
**
SEE TABLE 8.
Figure 50. EPROM Programming and Verification