Epson S1C17624 - 29.5 External Clock Input Characteristics; 29.6 Input;Output Pin Characteristics

29 ELECTRICAL CHARACTERISTICS
29-6
Seiko Epson Corporation S1C17624/604/622/602/621 TECHNICAL MANUAL
IOSC oscillation frequency-temperature characteristic
Typ. value
-50
10000
1000
-25 0255075 100
Ta [°C]
fIOSC [kHz]
External Clock Input Characteristics29.5
EXCLx
t
ECH tECL
t
CF
t
CR
VIH
VIL
OSC3
t
OSC3
tOSC3H
tOSC3H
tOSC3
tOSC3D =
VIH
SCLKx
tCFtCR
VIH
VIL
Unless otherwise specified: VDD = 1.8 to 3.6V, VSS = 0V, VIH = 0.8VDD, VIL = 0.2VDD, Ta = -25 to 70°C
Item Symbol Min. Typ. Max. Unit
EXCL0/1/2/3 input High pulse width t
ECH
2/fSYS s
EXCL5/6 input High pulse width
60 ns
EXCL0/1/2/3 input Low pulse width t
ECL
2/fSYS s
EXCL5/6 input Low pulse width
60 ns
UART transfer rate R
U 460800 bps
UART transfer rate (IrDA mode) R
UIrDA 115200 bps
Input rise time t
CR 80 ns
Input fall time t
CF 80 ns
OSC3 clock cycle time t
OSC3 125 ns
OSC3 clock input duty t
OSC3D 46 54 %
* f
SYS: System operating clock frequency
Input/Output Pin Characteristics29.6
S1C17624/604/622
Unless otherwise specified: VDD = 1.8 to 3.6V, VSS = 0V, Ta = -25 to 70°C
Item Symbol Condition Min. Typ. Max. Unit
High level input voltage V
IH Pxx 0.8VDD VDD V
Low level input voltage V
IL Pxx 0 0.2VDD V
High level Schmitt input threshold voltage VT1+ #RESET 0.5VDD 0.9VDD V
Low level Schmitt input threshold voltage VT1- #RESET 0.1VDD 0.5VDD V
High level Schmitt input threshold voltage
*1
VT2+ Pxx 0.5VDD 0.9VDD V
Low level Schmitt input threshold voltage
*1
VT2- Pxx 0.1VDD 0.5VDD V
Hysteresis voltage DV
T Pxx, #RESET 0.1 V