Philips Semiconductors
Product specification
8-bit microcontrollers with DTMF generator,
8 kbytes OTP and 128 bytes EEPROM
CONTENTS
1
2
3
4
5
5.1
5.2
6
6.1
6.2
6.3
6.4
6.5
6.6
7
7.1
7.2
7.3
7.4
7.5
7.6
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
22.1
22.2
22.3
22.4
23
24
FEATURES
GENERAL DESCRIPTION
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING INFORMATION
Pinning
Pin description
FREQUENCY GENERATOR
Frequency generator derivative registers
Melody output (P1.7/MDY)
Frequency registers
DTMF frequencies
Modem frequencies
Musical scale frequencies
EEPROM AND TIMER 2 ORGANIZATION
EEPROM registers
EEPROM latches
EEPROM flags
EEPROM macros
EEPROM access
Timer 2
DERIVATIVE INTERRUPTS
TIMING
RESET
IDLE MODE
STOP MODE
INSTRUCTION SET RESTRICTIONS
OVERVIEW OF PORT AND
POWER-ON-RESET CONFIGURATION
OTP PROGRAMMING
SUMMARY OF DERIVATIVE REGISTERS
HANDLING
LIMITING VALUES
DC CHARACTERISTICS
AC CHARACTERISTICS
PACKAGE OUTLINES
SOLDERING
Reflow soldering
Wave soldering
DIP
Repairing soldered joints
DEFINITIONS
LIFE SUPPORT APPLICATIONS
2
PCD3755A; PCD3755E;
PCD3755F
1997 Apr 16
Philips Semiconductors
Product specification
8-bit microcontrollers with DTMF generator,
8 kbytes OTP and 128 bytes EEPROM
1
FEATURES
2
PCD3755A; PCD3755E;
PCD3755F
GENERAL DESCRIPTION
•
8-bit CPU, ROM, RAM, EEPROM and I/O; in a single
28-lead or 32-lead package
•
8 kbytes user-programmable ROM (One-Time
Programmable)
•
128 bytes RAM
•
128 bytes Electrically Erasable Programmable
Read-Only Memory (EEPROM)
•
Over 100 instructions (based on MAB8048) all of 1 or 2
cycles
•
20 quasi-bidirectional I/O port lines
•
8-bit programmable Timer/event counter 1
•
8-bit reloadable Timer 2
•
Three single-level vectored interrupts:
– external
– 8-bit programmable Timer/event counter 1
– derivative; triggered by reloadable Timer 2
•
Two test inputs, one of which also serves as the external
interrupt input
•
DTMF, modem, musical tone generator
•
Reference for supply and temperature-independent
tone output
•
Filtering for low output distortion (CEPT compatible)
•
Melody output for ringer application
•
Power-on-reset
•
Stop and Idle modes
•
Supply voltage: 1.8 to 6 V (DTMF tone output and
EEPROM erase/write from 2.5 V)
•
Clock frequency: 1 to 16 MHz (3.58 MHz for DTMF
suggested)
•
Operating temperature:
−25
to +70
°C
•
Manufactured in silicon gate CMOS process.
3
ORDERING INFORMATION
(see note 1)
This data sheet details the specific properties of the
PCD3755A, PCD3755E and PCD3755F. The devices
differ in their Port and Power-on-reset configurations.
References to ‘PCD3755x’ apply to all three types.
The devices are members of the PCD33xxA family of
microcontrollers.
The shared properties of the family are described in the
“PCD33xxA family”
data sheet, which should be read in
conjunction with this publication.
The PCD3755A, PCD3755E and PCD3755F are
One-Time Programmable (OTP) microcontrollers
designed primarily for telephony applications.They include
an on-chip generator for dual tone multifrequency (DTMF),
modem and musical tones. In addition to dialling,
generated frequencies can be made available as square
waves (P1.7/MDY) for melody generation, providing ringer
operation.
The PCD3755A, PCD3755E and PCD3755F also
incorporate 128 bytes of EEPROM. The EEPROM can be
used for storing telephone numbers, particularly for
implementing redial functions.
The Power-on-reset circuitry is extra accurate to
accommodate parallel telephones and fax equipment.
The instruction set is similar to that of the MAB8048 and is
a sub-set of that listed in the
“PCD33xxA family”
data
sheet.
PACKAGE
TYPE NUMBER
NAME
PCD3755xP
PCD3755xT
PCD3755xH
Note
1. Please refer to the Order Entry Form (OEF) for this device for the full type number to use when ordering. This type
number will also specify the required program and the ROM mask options.
DIP28
SO28
LQFP32
DESCRIPTION
plastic dual in-line package; 28 leads (600 mil)
plastic small outline package; 28 leads; body width 7.5 mm
plastic low profile quad flat package; 32 leads; body 7
×
7
×
1.4 mm
VERSION
SOT117-1
SOT136-1
SOT358-1
1997 Apr 16
3
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