83C748 Philips Semiconductors, 83C748 Datasheet

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83C748

Manufacturer Part Number
83C748
Description
80C51 8-bit microcontroller family 2K/64 OTP/ROM/ low pin count
Manufacturer
Philips Semiconductors
Datasheet
Philips
Semiconductors
Preliminary specification
Supersedes data of 1998 Apr 23
IC20 Data Handbook
83C748/87C748
80C51 8-bit microcontroller family
2K/64 OTP/ROM, low pin count
INTEGRATED CIRCUITS
1999 Apr 15

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83C748 Summary of contents

Page 1

... OTP/ROM, low pin count Preliminary specification Supersedes data of 1998 Apr 23 IC20 Data Handbook Philips Semiconductors INTEGRATED CIRCUITS 1999 Apr 15 ...

Page 2

... Philips Semiconductors 80C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count DESCRIPTION The Philips 83C748/87C748 offers the advantages of the 80C51 architecture in a small package and at low cost. The 8XC748 Microcontroller is fabricated with Philips high-density CMOS technology. Philips epitaxial substrate minimizes CMOS latch-up sensitivity. ...

Page 3

... STACK POINTER TMP1 TMP2 PCON TCON ALU IE TH0 TL0 RTH RTL PSW INTERRUPT AND TIMER BLOCKS PORT 1 PORT 3 LATCH LATCH PORT 1 PORT 3 DRIVERS DRIVERS P1.0–P1.7 P3.0–P3.7 3 Preliminary specification 83C748/87C748 ROM/ EPROM PROGRAM ADDRESS REGISTER BUFFER PC INCRE- MENTER PROGRAM COUNTER DPTR SU00296 ...

Page 4

... Port 3 also functions as the address input for the EPROM memory location permits a power-on RESET using only an external capacitor After the device is reset, a 10-bit serial sequence, sent LSB first, applied to RESET, places 4 Preliminary specification 83C748/87C748 to be applied for PP via a small pull-up CC RATING UNIT – ...

Page 5

... 10 amb V = 13.0V PP must be externally limited as follows: OL 10mA 26mA 67mA ; X2, X1 n.c.; RST = 5ns, V CLCH CHCL , t = 5ns, V CLCH CHCL 5 Preliminary specification 83C748/87C748 LIMITS UNIT UNIT MIN MAX –0.5 0.2V –0 0.2V +0 0. –0.5 0. ...

Page 6

... C – Clock D – Input data H – Logic level high V –0.5 CC 0.2 V 0.45V ROM CODE SUBMISSION When submitting ROM code for the 83C748, the following must be specified byte user ROM data ADDRESS CONTENT 0000H to 07FFH DATA 1999 Apr 16MHz CLOCK ...

Page 7

... PCON. Table 1. External Pin Status During Idle and Power-Down Modes MODE Idle Power-down 7 Preliminary specification 83C748/87C748 SU00298 Port 0 ...

Page 8

... SBUF have also been removed. I/O Port Latches (P0, P1, P3) The port latches function the same as those on the 80C51. Since there is no port 2 on the 83C748, the P2 latch is not used. Port 0 on the 83C748 has only 3 bits, so only 3 bits of the P0 SFR have a useful function. ...

Page 9

... RTH and RTL. The value in the reload registers is left unchanged. See the 83C748 counter/timer block diagram in Figure 4. The TF bit in special function register TCON is set on counter overflow and, if the interrupt is enabled, will generate an interrupt. ...

Page 10

... INT1 is level sensitive. These flags are functionally identical to the corresponding 80C51 flags, except that there is only one timer on the 83C748 and the flags are therefore combined into one register. Note that the positions of the IE0/IT0 and IE1/IT1 bits are transposed from the positions used in the standard 80C51 TCON register ...

Page 11

... PP encrypted with the first byte in the encryption table, and so forth. 11 Preliminary specification 83C748/87C748 level, placing the OH voltage level, providing the byte back down to the V level and verifying the ...

Page 12

... MIN 1 24t CLCL 48t CLCL 38t CLCL 36t CLCL 13t CLCL 2t CLCL 13t CLCL ). PP is 14t maximum. AVQV CLCL 12 Preliminary specification 83C748/87C748 MAX UNIT 6 MHz s s 110 s 48t CLCL s 48t CLCL ...

Page 13

... MIN 10 s MIN t AVGL t HAHLD LOW ADDRESS ADSTA DVGL GHDX VALID DATA DATA TO BE PROGRAMMED PROGRAM MODE Figure 7. Program/Verify Cycle 13 Preliminary specification 83C748/87C748 V + DATA BUS SU00301 BIT 7 BIT 8 BIT 9 SU00302 5V t GHSL t AVQV INVALID DATA VALID DATA ...

Page 14

... Philips Semiconductors 80C51 8-bit microcontroller family, 2K/64 OTP/ROM, low pin count DIP24: plastic dual in-line package; 24 leads (300 mil) 1999 Apr 15 83C748/87C748 14 Preliminary specification SOT222-1 ...

Page 15

... Philips Semiconductors 80C51 8-bit microcontroller family, 2K/64 OTP/ROM, low pin count PLCC28: plastic leaded chip carrer; 28 leads; pedestal 1999 Apr 15 83C748/87C748 15 Preliminary specification SOT261-3 ...

Page 16

... Philips Semiconductors 80C51 8-bit microcontroller family, 2K/64 OTP/ROM, low pin count SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm 1999 Apr 15 83C748/87C748 16 Preliminary specification SOT340-1 ...

Page 17

... Philips Semiconductors 80C51 8-bit microcontroller family, 2K/64 OTP/ROM, low pin count 1999 Apr 15 83C748/87C748 NOTES 17 Preliminary specification ...

Page 18

... Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 Philips Semiconductors 1999 Apr 15 [1] Copyright Philips Electronics North America Corporation 1999 Document order number: 18 Preliminary specification 83C748/87C748 All rights reserved. Printed in U.S.A. Date of release: 04-99 9397 750 05736 ...

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