Contents
Features . . . . . . . . . . . . . . . . . . . . . .
Brief Specifications . . . . . . . . . . . . . .
Dimensions . . . . . . . . . . . . . . . . . . .
Pin Assignment . . . . . . . . . . . . . . . . .
Function of Each Pin . . . . . . . . . . . .
Block Diagram . . . . . . . . . . . . . . . . .
Absolute Maximum Ratings . . . . . . .
Recommended Operating Conditions
DC Characteristics . . . . . . . . . . . . . .
Frequently Asked Questions . . . . . . .
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MICROCOMPUTER WITH BUILT-IN PAGING DECODER
S-70L01AQS
The S-70L01AQS microcomputer incorporates a decoder conforming to CCIR
Radio Paging Decode 1(POCSA Code), a melody generator, an LCD driver
and a timer. Only attaching externally a radio frequency circuit, an LCD panel,
EEPROM for ID purpose and other parts makes it easy to create a numeric
pager.
The circuit without DC/DC converter can also be operated by one battery
because it is operated at min. 0.9V. The circuit configuration reduces radiation
noises and power consumption.
The decoder can support decoding, error correction and data length conversion
like SEIKO decoder IC S-70L41BFT and is provided with several customizing
functions.
A 76.8 kHz quartz crystal oscillator is used to respond to data rates 512, 1200
and 2400 bps
n
Features
•
Low voltage operation:
•
Low current consumption:
•
Oscillator:
•
CPU core:
•
ROM/RAM:
•
Port:
•
Timer/counter:
•
LCD driver configuration:
•
Data rate:
•
Address/Frame:
•
2-bit error random correction
•
Melody generator
0.9 V min.
10
µA
typ. at 1. 5 V
Crystal oscillator (76.8 kHz)
8bit CPU (65C02)
8 k byte ROM/512 byte RAM
4bit Output,8bit I/O
8bit Programmable Timer / Watch Timer
32 segments x 4 commons
512/1200/2400 bps
6 addresses/ 6 frames
n
Brief Specifications
Table 1 Brief Specifications
Item
Operating power supply voltage range
Average current consumption during standby
Current consumption during HALT mode
Operating temperature range
Specifications
V
DD
= 0.9 to 2.2 V
10
µA
6
µA
−
10 to 55
°C
Conditions
Fosc = 76.8 KHz
V
DD
= 1.5V, Ta = 25
°C
V
DD
= 1.5V, Ta = 25
°C
NOTICE
•
Note that the products incorporating SEIKO paging decoder built-in microcomputers may infringe upon
any patent depending upon applications including applied circuits herein, specifications or countries of
destination of the products.
•
Pay great attention to copyright of melody when you use a melody generator using SEIKO paging
decoder built-in microcomputers.
•
If the products incorporating SEIKO paging decoder built-in microcomputers may infringe upon any
patent or copyright, Seiko Instruments Inc. shall not be liable for any matters arising out of or in
connection with such patent or copyright infringement.
Seiko Instruments Inc.
1
MICROCOMPITER WITH BUILT-IN PAGING DECODER
S-70L01AQS
n
Function of Each Pin
Table 2 Function of Each Pin
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13 to 14
15 to 18
19 to 22
23 to 54
55 to 58
58 to 61
62 to 64
Name
X
OUT
V
SS
V
IN
TEST
SIGIN
BS1
BS2
BS3
RESET
V
DD
V
IB
TONE
LED1 to 2
PIO0 to 3
PIO4 to 7
SEG0 to 31
COM0 to 3
∅1
to 3
V
LC
1 to 3
I/O
O
-
I
I
I
O
O
O
I
-
O
O
O
I/O
I/O
O
O
-
-
Reset State
-
-
-
I
I
L
L
L
I
-
Description
Oscillating Circuit Output Pin
Power Supply Pin (GND)
Oscillating Circuit Input Pin
Pullup Resistor Bulit-In Test Pin:
Data can be written in the Test Register when this pin is
“L.”
Normally operates when
“H”
or
“Open.”
Received Data Input Pin
Battery Save Signal Output Pin for RF Control:
Can be used as an output port.
Battery Save Signal Output Pin for Quick Charge:
Can be used as an output port.
Battery Save Signal Output Pin for PLL Control:
Can be used as an output port.
Pullup Resister Bulit-In Reset Input Pin
Positive Power Supply Pin
Vibrator Drive Pin:
Can be used as an output port.
Sound Output Pin:
Can be used as an output port.
2-bit LED Drive Pin:
Can be used as an output port.
4-bit Input/Output Port:
Interrupt is possible at the falling edge.
4-bit Input/Output Port
Segment Signal Output Pin for LCD Driver
Common Signal Output Pin for LCD Driver
Tripler capacitor Connecting Pin for LCD Driver
Power Supply Pin for LCD Driver
L
L
I
I
-
-
-
-
4
Seiko Instruments Inc.
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EEWORLD
