83C751 datasheet(19/24 Pages) PHILIPS

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Philips Semiconductors

Product specification

83C751/87C751

80C51 8-bit microcontroller family

2K/64 OTP/ROM, I2C, low pin count

1998 May 01

EPROM PROGRAMMING AND VERIFICATION

Tamb = 21°C to +27°C, VCC = 5V ±10%, VSS = 0V

SYMBOL

PARAMETER

MIN

MAX

UNIT

1/tCLCL

Oscillator/clock frequency

1.2

MHz

tAVGL1

Address setup to P0.1 (PROG–) low

µs + 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

µs

tGHSL

VPP hold after P0.1 (PROG–)

µs

tGLGH

P0.1 (PROG–) width

110

µs

tAVQV2

VPP low (VCC) to data valid

48tCLCL

tGHGL

P0.1 (PROG–) high to P0.1 (PROG–) low

µs

tMASEL

ASEL high time

13tCLCL

tHAHLD

Address hold time

2tCLCL

tHASET

Address setup to ASEL

13tCLCL

tADSTA

Low address to valid data

48tCLCL

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.

12.75V

25 PULSES

tSHGL

tGHSL

tGLGH

tGHGL

µs MIN

tMASEL

tHASET

tADSTA

tDVGL

tGHDX

tAVQV

VERIFY MODE

PROGRAM MODE

VERIFY MODE

P0.2 (VPP)

P0.1 (PGM)

P0.0 (ASEL)

PORT 3

PORT 1

INVALID DATA

VALID DATA

DATA TO BE PROGRAMMED

INVALID DATA

VALID DATA

HIGH ADDRESS

LOW ADDRESS

tHAHLD

tAVGL

SU00303

Figure 7. Program/Verify Cycle

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.

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