MX10FMAXDQC 查看數據表（PDF） - Unspecified

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MX10FMAXDQC

SINGLE-CHIP 8-BIT MICROCONTROLLER

Unspecified 

MX10FMAXDQC

5. PROGRAMMING SPECIFICATION

P89C138/238 has two programming modes, which depends on the P2.6 pin. If P2.6 = 1, then it is in parallel program-

ming mode, if not, then it is in serial programming mode.

5.1 Parallel Programming Mode

1

0

12.5~13V,5/6.25/4.5V

CE

OE

1

WE

A[15:0]

MS[2:0]

4.5/5/6.25V

VDD

RST

PSEN

XTAL1

EA

XTAL2

P3.3

P2.7

P0[7:0]

P2.6

ALE

P3[5:4],P2[5:0],P[7:0]

P3.7,P3.1, P3.0

VSS

4~6MHz

Q[7:0]

PIN NAME

P1.0 ~ P1.7

P2.0 ~ P2.5, P3.4 ~ P3.5

P0.0 ~ P0.7

P3.3

P2.7

ALE

EA

P3.7, P3.1, P3.0

VDD

GND

SYMBOL

A0 ~A7

A8 ~ A13, A14 ~A15

Q0 ~ Q7

CE

OE

WE

Vpp

MS2 ~ MS0

VDD

GND

Notice for speed progamming

FUNCTION

Input low order address bits

Input high order address bits

Data Input/Output

Chip Enable Input

Output Enable Input

Write Enable Input

Program Supply Voltage, 12.5 ~13Volts

Flash Mode Selection

Power Supply Voltage (+5V)

Ground Pin

P/N:PM0626

REV. 0.1, DEC 17, 1999

6

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