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Teilenummer | 404344RF |
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Beschreibung | HD404344 | |
Hersteller | Hitachi | |
Logo | ||
Gesamt 30 Seiten www.DataSheet4U.com
HD404344R Series/HD404394 Series
Rev. 7.0
Sept. 1999
Description
The HD404344R series and HD404394 series 4-bit microcomputers are products of the HMCS400 series,
which is designed to make application systems compact while realizing higher performance and increasing
program productivity.
Each microcomputer has an A/D converter, two timers and a serial interface. The HD404344R series
includes the HD404344R with on-chip 4-kword ROM, HD404342R with 2-kword ROM, and HD404341R
with 1-kword ROM. The HD404394 series includes the HD404394 with on-chip 4-kword ROM,
HD404392 with 2-kword ROM, and HD404391 with 1-kword ROM.
The HD4074344 and HD4074394 are the PROM version ZTAT™ microcomputers. Programs can be
written to the PROM by a PROM writer, which can dramatically shorten system development periods and
smooth the process from debugging to mass production. (The PROM program specifications are the same
as for the 27256.)
ZTAT™: Zero Turn Around Time ZTAT is a Trademark of Hitachi Ltd.
Features
• Input/output pins
HD404344R series, HD4074344: 22 pins
(10pins: Large-current I/O pins)
HD404394 series: 21 pins
(3 pins: intermediate-voltage NMOS open drain I/O; 5 pins: NMOS open drain I/O with 15-mA
high-current driver)
• Two timer/counters
One timer output
One event counter input (with programmable edge detection)
• 8-bit clock-synchronous serial interface (1 channel)
• On-chip A/D converter
HD404344R series, HD4074344: 8 bit × 4 channel
HD404394 series: 8 bit × 3 channel (with Vref pin)
• Built-in oscillator
www.DataSheet4U.com
HD404344R Series/HD404394 Series
List of Functions (cont)
Mask ROM
item
HD404391
Operating voltage (V)
2.7 to 5.5
Instruction cycle time (typ.)
1 µs
(fosc = 4.0
MHz)
ROM (Words)
1,024
RAM (Digits)
256
I/O 21
intermediate- 3
voltage NMOS
open drain I/O
NMOS open 5
drain I/O (15
mA High
current driver)
Timer
functions
Free running 2
timer
Reload timer 2
Event counter 1
Watchdog
timer
1
Serial interface
1
A/D converter
8bit × 3ch
Interrupt External
1
Internal
4
Low-power modes
2
Stop mode l
lStandby mode
Oscillator
Ceramic
oscillation
l
Package
DP-28S
FP-28DA
FP-30D
Guaranteed operation
temperature (°C)
–20 to +75
HD404392
2.7 to 5.5
1 µs
(fosc = 4.0
MHz)
2.048
256
21
3
5
2
2
1
1
1
8bit × 3ch
1
4
2
l
l
l
DP-28S
FP-28DA
FP-30D
–20 to +75
HD404394
2.7 to 5.5
1 µs
(fosc = 4.0
MHz)
4,096
256
21
3
5
2
2
1
1
1
8bit × 3ch
1
4
2
l
l
l
DP-28S
FP-28DA
FP-30D
–20 to +75
ZTAT™
HD4074394
2.7 to 5.5
1 µs
(fosc = 4.0
MHz)
4,096 PROM
256
21
3
5
2
2
1
1
2
8bit × 3ch
1
4
2
l
l
l
DP-28S
FP-28DA
FP-30D
–20 to +75
6
6 Page www.DataSheet4U.com
HD404344R Series/HD404394 Series
HD404344R Series, HD4074344 Block Diagram
INT0
Interrupt
control
EVNB
Timer B
TOC
Timer C
SI
SO
SCK
AN0
AN1
AN2
AN3
Serial
interface
A/D
converter
Data bus
Large-current
pin
Bidirectional
signal line
System control
RAM
(256 × 4 bits)
W
(2 bits)
X
(4 bits)
SPX
(4 bits)
Y
(4 bits)
SPY
(4 bits)
ALU
ST CA
(1 bit) (1 bit)
A
(4 bits)
B
(4 bits)
SP
(10 bits)
Instruction
decoder
PC
(14 bits)
ROM
(1,024 × 10 bits)
(2,048 × 10 bits)
(4,096 × 10 bits)
12
D0
D1
D2
D3
D4
D5
R00
R01
R02
R03
R10
R11
R12
R13
R20
R21
R22
R23
R30
R31
R32
R33
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ 404344RF Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
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