RTC-6593 Datasheet, PDF (1/1 Pages) Epson Company – REAL TIME CLOCK MODULE FOR PC/AT

REAL TIME CLOCK MODULE FOR PC/AT ∗1
RTC-6593
• Builtin crystal unit allows adjustment-free efficient operation.
• Provides 114-bytes of backed-up RAM.
• Extended alarm function.
• Low current consumption.
• A builtin power supply switching circuit makes it possible to provide
automatic power supply backup to both the RTC and extended RAM.
*1 PC/AT is a trademark of International Business Machines Corporation.
Actual size
Specifications (characteristics)
Absolute Max. rating
Item
Symbol Condition
Rating
Unit
Supply voltage
VDD
VDD-GND
- 0.3 to + 7.0
V
Input voltage
VIN
Input pin
- 0.3 to VDD + 0.3
Storage
temperature
TSTG
—
- 55 to
˚C
+125
External dimensions
16.3 max.
24
13
RTC6593
EPSON 5200B
1
12
(Unit: _mm)
Terminal
AD 0
AD 1
AD 2
AD 3
AD 4
AD 5
AD 6
AD 7
Pin No
4
5
6
7
8
9
10
11
Soldering
conditions
TSOL
Twice under 260˚C within 10
seconds or under 230˚C
within 3 minutes
Operating range, frequency and DC characteristics
Item
Symbol Condition Min. Typ. Max. Unit
Supply voltage
VDD
VDD - GND
4.5 5.0 5.5 V
Operating
TOPR
—
-10
temperature
+70 ˚C
Frequency
tolerance
Temperature
characteristics
Voltage
characteristics
Aging
Input ^{High level}
voltage _{Low level}
Output
voltage
High level
Low level
Power supply
current
Battery supply
current
∆f/fo _{Ta=25˚C, VDD=5V}
Top ^{Ta=-10 to 70˚C}
25˚C standard
—
fv
Ta=stable
fa
Ta=25˚C, VDD=5V
First year
VIH
2.2
—
VIL
-0.3
VOH
VDD=5V
2.4
ILOAD=-4mA
VOL
VDD=5V
ILOAD=+4mA
IDD
Output
—
unloaded
IBAT
VBAT=3V
VDD= 0V
5±20
+10
-120
ppm
±6 ppm/V
—
±5 ppm/Y
VDD+0.3
0.8
V
0.4
3
10 ^mA
0.5 1.0 ^µA
Terminal functions
Terminal
Function
MOT
AD0 to 7
Model select (input)
Multiplexed bi-direction
address/data buses
GND
___
RTC
Power supply (grand)
Real time clock
select (input)
AS
_
R/W
Address strobe (input)
Read/ Write (input)
DS
_____
RESET
___
IRQ
Data strobe (input)
Reset (input)
Interrupt request
(output)
VBAT
____
XIRQ
____
XALM
SQW
VDD
NC
Back-up power supply
Extended alarm
interrupt request (output)
Extended alarm
select (input)
Square wave output
Power supply (+5V)
Not connected internally
0.2
0° to
10°
1.0
Pin No.
1
4 to 11
12
13
14
15
17
18
19
20
21
22
23
24
2,3,16
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