參數(shù)資料
型號(hào)： UPD7554AGA
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述： 4位單片機(jī)
文件頁(yè)數(shù)： 1/64頁(yè)
文件大?。?/td> 991K
代理商： UPD7554AGA
DESCRIPTION
The
μ
PD7554A is a product of the
μ
PD7554, 7564 sub-series which is a 4-bit single-chip microcomputer with a
small number of ports in a small package, which is enabled to operate even at the super-low voltage of 2.0 V so
that it is optimized for handy-type systems operating with dry cells. The
μ
PD7554A is a low-order model in the
μ
PD7500 series (
μ
PD7554A only).
This device incorporates a serial interface, and serves as the sub-CPU for a high-order model of that series or
the 8-bit microcomputer. It is optimized for distributed processing of the system.
The
μ
PD7554A has outputs to directly drive a triac and LEDs and allows selection among many types of input/
output circuits using their respective mask options, sharply reducing the number of external circuits required.
Details of functions are described in the User’s Manual shown below. Be sure to read in design.
μ
PD7554, 7564 User’s Manual: IEM-1111D
4-BIT SINGLE-CHIP MICROCOMPUTER
μ
PD7554A, 7554A(A)
MOS INTEGRATED CIRCUIT
DATA SHEET
The mark
#
shows major revised points.
The information in this document is subject to change without notice.
FEATURES
Range of supply voltage 7554A
: 2.0 to 6.0 V
7554A(A) : 2.7 to 6.0 V
Drive with two 1.5 V manganese cells
47 types of instructions
(Subset of
μ
PD7500H SET B)
Instruction cycle
External clock : 2.86
μ
s (in operation at 700 kHz, 5 V)
RC oscillation : 4
μ
s (in operation at 500 kHz, 5 V)
Program memory (ROM) capacity: 1024
×
8 bits
Data memory (RAM) capacity: 64
×
4 bits
Test source: One external source and two internal
sources
Document No.
(O. D. No.
Date Published January 1995 P
Printed in Japan
IC-2419C
IC-7835C)
1989
APPLICATION
μ
PD7554A
μ
PD7554A(A) : Automotive and transportation equipments, etc.
: Sub-CPU including handy-type system, PPC, printer, VCR, audio equipments, etc.
#
The quality level and absolute maximum ratings of the
μ
PD7554A and the
μ
PD7554A(A) differ.
Except where specifically noted, explanations here concern the
μ
PD7554A as a representative product.
If you are using the
μ
PD7554A(A), use the information presented here after checking the functional differences.
8-bit timer/event counter
16 I/O lines (Total output current of all pins: 100 mA)
Can directly drive a triac and a LED: P80 to P83
Can directly drive LEDs: P100 to P103 and P110
to P113
Mask option function provided for every port
8-bit serial interface
Standby (STOP/HALT) function
Low supply voltage data retaining function for data
memory
Built-in ceramic oscillator for system clock RC
Oscillation with an external resistor R (Incorporat-
ing capacitor C)
#
相關(guān)PDF資料
PDF描述
UPD7554A 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD7554AA 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD7554ACS 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD7554AG 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD75CG08E 4 BIT SINGLE CHIP CMOS MICROCOMPUTERS
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