RTC-58323 EPSON [Epson Company], RTC-58323 Datasheet - Page 5

• Manufacturer Part Number: RTC-58323
• Description: Real time clock module(4-bit I/O CONNECTION REAL TIME CLOCK MODULE)
• Manufacturer: EPSON [Epson Company]

RTC-58321/58323
n Block diagram
n Pin functions
RTC-58321
14 to 16
ADDRESS
4 to 7
10
11
12
13
WRITE
WRITE
1
2
3
8
9
*
BUSY
READ
STOP
TEST
CS1
CS2
Pin numbers
D
D
D
D
0
1
2
3
R
32.768 kHz
quarts oscillator
1’
N
R
R
R
R
R
R
1’
1’
1’
1’
1’
1’
RTC-58323
OSC
18 to 24
8 to 11
1 to 4
12
13
14
15
16
17
5
6
7
1/2
15
R
BUSY
Pin symbol
ADDRESS
* A bypass capacitor (minimum 0.01 F) must be connected between V
D
WRITE
WRITE
1024Hz
READ
BUSY
STOP
TEST
R
GND
0
CS
CS
V
NC
to D
DD
2
1
D
3
TRI-STATE
CONTROL
1Hz
1024H
z
Input/output
1Hz
u Rp = 200K
Output
SWITCH
Input
Input
Input
Input
Input
Input
Input
Both
Seconds
1/10|1/6
S1
1/60Hz
S10
Page - 2
TYP
1/3600Hz
1/10|1/6
Minutes
Chip select. When high, device can be accessed.
Set high to write.
Set high to read.
Address/data bus.
Negative power supply.
Address latch. Set high to latch address from D
1 Hz output pin.
1 Hz on/off control pin. When high, the 1 Hz signal is disabled, and
the counter stopped.
Increment pin for the counter. Normally this pin should be fixed low.
Connect to power down detection circuit. (Fix high if there is no
power down detection circuit.) When CS
accessed, regardless of state of CS
Fix low.
Positive power supply (normally +5 V).
E, F
M11
TEST
M110
1/12|1/24
Hours
H1
or
DATA BUS
H10
ADDRESS
LATCH
Day-of week
D
D
D
D
10’
11’
12’
13’
1/7
W
Function
1/10|1/3
A
A
A
A
1'
1
2
3
Day
D1
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E-F
D10
2
S1
S10
M11
M110
H1
H10
W
D1
D10
M01
M010
Y1
Y10
D
E-F
.
DD
1
Month
and V
1/12
is low, chip cannot be
MO1
MO10
SS
0
to D
, as close as possible.
1/10|1/10
3
Year
.
Y1
Y10