80C31 datasheet(32/38 Pages) PHILIPS

32 / 38 page

Philips Semiconductors

Product specification

80C51/87C51/80C31

80C51 8-bit microcontroller family

4K/128 OTP/ROM/ROMless, low voltage (2.7V–5.5V),

low power, high speed (33 MHz)

2000 Jan 20

EPROM PROGRAMMING AND VERIFICATION CHARACTERISTICS

Tamb = 21°C to +27°C, VCC = 5V±10%, VSS = 0V (See Figure 29)

SYMBOL

PARAMETER

MIN

MAX

UNIT

VPP

Programming supply voltage

12.5

13.0

IPP

Programming supply current

50 1

1/tCLCL

Oscillator frequency

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

µs

tGHSL

VPP hold after PROG

µs

tGLGH

PROG width

110

µs

tAVQV

Address to data valid

48tCLCL

tELQZ

ENABLE low to data valid

48tCLCL

tEHQZ

Data float after ENABLE

48tCLCL

tGHGL

PROG high to PROG low

µs

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 26.

FOR VERIFICATION CONDITIONS SEE FIGURE 28.

SEE TABLE 8.

Figure 29. EPROM Programming and Verification

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