RS5C348A RICOH Co.,Ltd., RS5C348A Datasheet - Page 5

• Manufacturer Part Number: RS5C348A
• Description: 4-wire Serial Interface Real-time Clock
• Manufacturer: RICOH Co.,Ltd.

Rev.2.01
Symbol
VIH
VIL
IOH
IOL1
IOL2
IIL
RDNCE
IOZ1
IOZ2
IDD
(Rx5C34
8A)
IDD
(Rx5C34
8B)
VDETH
VDETL
CG
CD
(Unless otherwise specified:
VSS=0V, VDD=3.0V, Topt=-40 to +85°C, Crystal oscillator 32768Hz,CL=7pF,R1=30kΩ)
DC ELECTRICAL CHARACTERISTICS
*1) For time keeping current when outputting 32.768kHz from the 32KOUT pin, see “P.40.
Characteristics”.
Item
“H” Input Voltage
“L” Input Voltage
“H” Output
Current
“L” Output
Current
Input Leakage
Current
Pull-down Resistance
Output Off-state
Current
Time Keeping Current
Supply Voltage
Monitoring Voltage “H”
Supply Voltage
Monitoring Voltage “L”
Internal Oscillation
Capacitance 1
Internal Oscillation
Capacitance 2
Pin Name
CE, SCLK, SI
SO
/INTR,
32KOUT(Rx5C348A
)
SO,
32KOUT(Rx5C348B
)
SI, SCLK
CE
SO
/INTR, 32KOUT
VDD
VDD
VDD
VDD
OSCIN
OSCOUT
- 5 -
Conditions
VDD=2.0 to 5.5V
VOH=VDD-0.5V
VOL=0.4V
VI=5.5V or VSS
VDD=5.5V
VO=5.5V or VSS
VDD=5.5V
VO=5.5V
VDD=5.5V
VDD=3V,
CE= OPEN
Output = OPEN
32KOUT=OFF
*1)
VDD=3V,
CE= OPEN
Output = OPEN
32KOUT=ON
Topt=-30 to +70°C
Topt=-30 to +70°C
Min.
0.8x
VDD
-0.3
2.0
0.5
-1.0
40
-1
-1
1.90
1.45
Typ.
120
0.35
0.55
2.10
1.60
12
12
12345
Rx5C348A/B
Max.
5.5
0.2x
VDD
-0.5
1.0
400
1
1
0.80
1.00
2.30
1.80
Typical
Unit
V
mA
mA
µA
kΩ
µA
µA
V
pF