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83C751 Datasheet, PDF (19/24 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 2K/64 OTP/ROM, I2C, low pin count
Philips Semiconductors
80C51 8-bit microcontroller family
2K/64 OTP/ROM, I2C, low pin count
Product specification
83C751/87C751
EPROM PROGRAMMING AND VERIFICATION
Tamb = 21°C to +27°C, VCC = 5V ±10%, VSS = 0V
SYMBOL
PARAMETER
MIN
1/tCLCL
tAVGL1
Oscillator/clock frequency
Address setup to P0.1 (PROG–) low
1.2
10µs + 24tCLCL
tGHAX
Address hold after P0.1 (PROG–) high
48tCLCL
tDVGL
Data setup to P0.1 (PROG–) low
38tCLCL
tGHDX
Data hold after P0.1 (PROG–) high
36tCLCL
tSHGL
VPP setup to P0.1 (PROG–) low
10
tGHSL
VPP hold after P0.1 (PROG–)
10
tGLGH
P0.1 (PROG–) width
90
tAVQV2
VPP low (VCC) to data valid
tGHGL
P0.1 (PROG–) high to P0.1 (PROG–) low
10
tMASEL
ASEL high time
13tCLCL
tHAHLD
Address hold time
2tCLCL
tHASET
Address setup to ASEL
13tCLCL
tADSTA
Low address to valid data
NOTES:
1. Address should be valid at least 24tCLCL before the rising edge of P0.2 (VPP).
2. For a pure verify mode, i.e., no program mode in between, tAVQV is 14tCLCL maximum.
P0.2 (VPP) 5V
12.75V
tSHGL
25 PULSES
P0.1 (PGM)
P0.0 (ASEL)
tMASEL
tGLGH
98µs MIN
tAVGL
tGHGL
10µs MIN
PORT 3
PORT 1
tHASET
HIGH ADDRESS
tHAHLD
LOW ADDRESS
INVALID DATA
VERIFY MODE
tADSTA
VALID DATA
tDVGL tGHDX
DATA TO BE PROGRAMMED
PROGRAM MODE
Figure 7. Program/Verify Cycle
MAX
6
UNIT
MHz
µs
µs
110
µs
48tCLCL
µs
48tCLCL
5V
tGHSL
tAVQV
INVALID DATA
VALID DATA
VERIFY MODE
SU00303
Purchase of Philips I2C components conveys a license under the Philips’ I2C patent
to use the components in the I2C system provided the system conforms to the
I2C specifications defined by Philips. This specification can be ordered using the
code 9398 393 40011.
1998 May 01
19