Document
INTEGRATED CIRCUITS
DATA SHEET
P83C434; P83C834 8-bit microcontrollers with LCD-driver
Product specification Supersedes data of 1996 Oct 16 File under Integrated Circuits, IC20 1997 Jul 03
Philips Semiconductors
Product specification
8-bit microcontrollers with LCD-driver
CONTENTS 1 1.1 1.2 2 3 4 5 5.1 5.2 6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 FEATURES Differences from the 80C51 core Memory GENERAL DESCRIPTION ORDERING INFORMATION BLOCK DIAGRAM PINNING INFORMATION Pinning Pin description FUNCTIONAL DESCRIPTION Input/Output (I/O) Oscillator Interrupts Reduced power modes Reset Special Function Registers (SFRs) LCD driver unit 7 8 9 10 11 11.1 12 13 14 14.1 14.2 14.3 15 16
P83C434; P83C834
LIMITING VALUES HANDLING DC CHARACTERISTICS LCD DRIVER CHARACTERISTICS AC CHARACTERISTICS Characteristic curves APPLICATION INFORMATION PACKAGE OUTLINE SOLDERING Introduction SDIP QFP DEFINITIONS LIFE SUPPORT APPLICATIONS
1997 Jul 03
2
Philips Semiconductors
Product specification
8-bit microcontrollers with LCD-driver
1 FEATURES
P83C434; P83C834
• Timer 0 external input replaced by a direct connection to the 32 kHz oscillator output. • Timer 1 external input is connected to pin P0.0 (Port 0); alternate function of P0.0. • Standard serial interface and its control register is not present. • Adjustable on-chip oscillator without external components. • Wake-up from Power-down mode is also possible by means of an interrupt. • Extended external interrupts. 1.2 Memory ROM/RAM sizes MEMORY DEVICE ROM P83C434 P83C834 2 4 kbytes 8 kbytes RAM 128 bytes 256 bytes
• 80C51 type core • System clock derived from an internal free running Current Controlled Oscillator (CCO); no external components required. Clock frequency can be adjusted by software. • Optimized for EMC (Electromagnetic Compatibility) • Clock frequency fclk = 1 to 12 MHz • 12 I/O lines, quasi-bidirectional • Gated interrupt on 8 I/O lines: – P0.0 to P0.3 when LOW – P0.4 to P0.7 when LOW or HIGH • LCD driver clock, 32 kHz, which also provides the time base for a Real Time Clock • 1-second interrupt by internal 15-bit counter • On-chip Liquid Crystal Display (LCD) drivers with 26 outputs, comprising: – 22, 23 or 24 segment drivers – 1 to 4 backplanes • LCD multiplexing rates: 1 : 1 (static), 1 : 2, 1 : 3 or 1 : 4 • Operating temperature: −40 to +85 °C • Single power supply: – Operating voltage: 3.5 to 5.5 V – Power-down mode: 1.8 V. 1.1 Differences from the 80C51 core
Table 1
GENERAL DESCRIPTION
The P83C434 and P83C834 are low-cost microcontrollers of the 80C51 family, with LCD drivers. Main application is in the user-interface (keypad, display) of consumer products, e.g. portable radios, CD-players, etc. This data sheet details the specific properties of the P83C434 and P83C834. The shared characteristics of the 80C51 family of microcontrollers are described in “Data Handbook IC20”, which should be read in conjunction with this data sheet.
• Port 0 quasi-bidirectional instead of open-drain. • No external memory connection. Signals EA, ALE and PSEN are not present. • Port 1, Port 2 (pins P2.4 to P2.7) and Port 3 are not present. 3 ORDERING INFORMATION
PACKAGE TYPE NUMBER NAME P83C434CFP; P83C834CFP DESCRIPTION VERSION SOT270-1 SDIP42 plastic shrink dual in-line package; 42 leads (600 mil)
TEMP. RANGE (°C) −40 to +85
QFP44 plastic quad flat package; 44 leads (lead length 1.3 mm); SOT307-2 body 10 × 10 × 1.75 mm
1997 Jul 03
3
4
1997 Jul 03
VDD(C) RESET XTAL1 MCON.5 OSC XTAL2 32 kHz
Philips Semiconductors
BLOCK DIAGRAM
handbook, full pagewidth
VDD(P)
VSS
P2.0 P2.1 P2.2 P2.3 1-SECOND COUNTER
MCON.4 CCO D/A OSCON
P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7
0 1 P2.0 to P2.3 2 T0 3 T1 EI1 0 80C51 CORE 1 2 3 P0.0 to P0.7 4 5 6 CLOCK 7 EI0 internal bus
8-bit microcontrollers with LCD-driver
8 8
4
8 INTERRUPT GATES 8 MCON LCD UNIT 8 INTERRUPT GATES REGISTER (IG). internal MCON.3
(1)
MCON.0
CLOCK
MCON.1
MCON.2
S00 S22/ S23/ BP1 BP0 to BP3 BP2 MGG012 S21
(1) Drive lines S00 and S21 are not available with the SDIP42 (SOT270-1) package.
P83C434; P83C834
Product specification
Fig.1 Block diagram.
Philips Semiconductors
Product specification
8-bit microcontrollers with LCD-driver
5 5.1 PINNING INFORMATION Pinning
P83C434; P83C834
handbook, halfpage
S23/BP2 BP1 BP0 P2.0 P2.1 P2.2 P2.3 RESET VDD(P)
1 2 3 4 5 6 7 8 9
42 S22/BP3 41 S20 40 S19 39 S18 38 S17 37 S16 36 S15 35 S14 34 S13
VSS 10 VDD(C) 11 XTAL1 12 XTAL2 13 P0.0 14 P0.1 15 P0.2 16 P0.3 17 P0.4 18 P0.5 19 P0.6 20 P0.7 21
P83C434 P83C834
33 S12 32 S11 31 S10 30 S09 29 S08 28 S07 27 S06 26 S05 25 S04 24 S03 23 S02 22 S01
MGG011
Fig.2 Pinning diagram for SDIP42 (SOT270-1).
1997 Jul 03
5
Philips Semiconductors
Product specification
8-bit microcontrollers with LCD-driver
P83C434; P83C834
40 S23/BP2
handbook, full pagewidth
43 P2.0
42 BP0
39 S22/BP3
44 P2.1
41 BP1
38 S21
37 S20
36 S19
35 S18
P2.2 P2.3 RESET VDD(P) VSS VDD(C) XTAL1 XTAL2 P0.0
1 2 3 4 5 6 7 8 9
34 S17
33 S16 32 S15 3.