參數(shù)資料
型號(hào)： 935247300112
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PDSO28
封裝： 7.50 MM, PLASTIC, SO-28
文件頁數(shù)： 23/35頁
文件大?。?/td> 243K
代理商： 935247300112
1997 Apr 16
3
Philips Semiconductors
Product specication
8-bit microcontrollers with DTMF generator,
8 kbytes OTP and 128 bytes EEPROM
PCD3755A; PCD3755E;
PCD3755F
1
FEATURES
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.
2
GENERAL DESCRIPTION
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.
3
ORDERING INFORMATION (see note 1)
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.
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
PCD3755xP
DIP28
plastic dual in-line package; 28 leads (600 mil)
SOT117-1
PCD3755xT
SO28
plastic small outline package; 28 leads; body width 7.5 mm
SOT136-1
PCD3755xH
LQFP32
plastic low prole quad at package; 32 leads; body 7
× 7 × 1.4 mm
SOT358-1
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