RX5C348A Datasheet, PDF (5/45 Pages) RICOH electronics devices division – 4-WIRE SERIAL INTERFACE

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