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  Holtek Semiconductor Electronic Components Datasheet  

HT49C70L Datasheet

LCD Type 8-Bit MCU

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HT49C70L pdf
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HT49R70A-1/HT49C70-1/HT49C70L
LCD Type 8-Bit MCU
Technical Document
· Tools Information
· FAQs
· Application Note
- HA0017E Controlling the Read/Write Function of the HT24 Series EEPROM Using the HT49 Series MCUs
- HA0024E Using the RTC in the HT49 MCU Series
- HA0025E Using the Time Base in the HT49 MCU Series
- HA0026E Using the I/O Ports on the HT49 MCU Series
- HA0027E Using the Timer/Event Counter in the HT49 MCU Series
Features
· Operating voltage:
fSYS=4MHz: 2.2V~5.5V for HT49R70A-1/HT49C70-1
fSYS=8MHz: 3.3V~5.5V for HT49R70A-1/HT49C70-1
fSYS=500kHz: 1.2V~2.2V for HT49C70L
· 8 input lines
· 16 bidirectional I/O lines
· Two external interrupt input
· One 8-bit and one 16-bit programmable timer/event
counter with PFD (programmable frequency divider)
function
· LCD driver with 41´2, 41´3 or 40´4 segments
· 8K´16 program memory
· 224´8 data memory RAM
· Real Time Clock (RTC)
· 8-bit prescaler for RTC
· Watchdog Timer
· Buzzer output
· On-chip crystal, RC and 32768Hz crystal oscillator
· HALT function and wake-up feature reduce power
consumption
· 16-level subroutine nesting
· Bit manipulation instruction
· 16-bit table read instruction
· Up to 0.5ms instruction cycle with 8MHz system clock
for HT49R70A-1/HT49C70-1
· Up to 8ms instruction cycle with 500kHz system clock
for HT49C70L
· 63 powerful instructions
· All instructions in 1 or 2 machine cycles
· Low voltage reset/detector functions for
HT49R70A-1/HT49C70-1
· 100-pin QFP package
General Description
The HT49R70A-1/HT49C70-1/HT49C70L are 8-bit,
high performance, RISC architecture microcontroller
devices specifically designed for a wide range of LCD
applications. The mask version HT49C70-1 and
HT49C70L are fully pin and functionally compatible with
the OTP version HT49R70A-1 device. The HT49C70L
is a low voltage version, with the ability to operate at a
minimum power supply of 1.2V, making it suitable for
single cell battery applications.
The advantages of low power consumption, I/O flexibil-
ity, programmable frequency divider, timer functions,
oscillator options, HALT and wake-up functions and
buzzer driver in addition to a flexible and configurable
LCD interface, enhance the versatility of these devices
to control a wide range of LCD-based application possi-
bilities such as measuring scales, electronic multi-
meters, gas meters, timers, calculators, remote
controllers and many other LCD-based industrial and
home appliance applications.
Rev. 2.00
1 April 24, 2006


  Holtek Semiconductor Electronic Components Datasheet  

HT49C70L Datasheet

LCD Type 8-Bit MCU

No Preview Available !

HT49C70L pdf
Block Diagram
HT49R70A-1/HT49C70-1/HT49C70L
P ro g ra m
M e m o ry
P ro g ra m
C o u n te r
STAC K
In te rru p t
C ir c u it
IN T C
In s tr u c tio n
R e g is te r
MP
M
U
D ATA
M e m o ry
X
In s tr u c tio n
D ecoder
T im in g
G e n e r a tio n
O SC2
O SC4
O SC1
RES
VDD
VSS
O SC3
M UX
A LU
S h ifte r
STATU S
BP
ACC
LC D
M e m o ry
L C D D r iv e r
C O M 0~
COM 2
C O M 3/
S E G 40
S E G 0~
S E G 39
TM R 0C
TM R 0
PFD 0
TM R 1C
TM R 1
PFD 1
R TC
W DT
T im e B a s e
M
U
X
fS Y S /4
fS Y S
R TC O ut
P B 2 /T M R 0
P B 3 /T M R 1
M TM R 0O V
U fS Y S
X T im e B a s e O u t
fT 1 D
fS Y S /4
M
U R TC O SC
X
W DT O SC
PC
PO RT B
PB
PO RT A
PA
H A L T E N /D IS
P C 0~P C 7
P B 0 /IN T 0
P B 1 /IN T 1
P B 2 /T M R 0
P B 3 /T M R 1
P B 4~P B 7
P A 0 /B Z
P A 1 /B Z
PA2
P A 3 /P F D
P A 4~P A 7
O SC3
O SC4
L V D /L V R
Rev. 2.00
2 April 24, 2006


Part Number HT49C70L
Description LCD Type 8-Bit MCU
Maker Holtek Semiconductor
Total Page 30 Pages
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