I 2 C (I2C) Characteristics - Epson S1C17M20 Technical Manual

Master and slave modes
(CPOL, CPHA) = (1, 0) or (0, 1)
(CPOL, CPHA) = (1, 1) or (0, 0)
Slave mode
#SPISSn
SPICLKn
(CPOL, CPHA) = (0, 1)
SPICLKn
(CPOL, CPHA) = (1, 0)
SDIn
SDOn
21.11 I C (I2C) Characteristics
2
Unless otherwise specified: V
DD
Item Symbol
SCLn frequency f
SCL
Hold time (repeated) t
HD:STA
START condition *
SCLn Low pulse width t
LOW
SCLn High pulse width t
HIGH
Repeated START condition t
SU:STA
setup time
Data hold time t
HD:DAT
Data setup time t
SU:DAT
SDAn, SCLn rise time t
r
SDAn, SCLn fall time t
f
STOP condition setup time t
SU:STO
Bus free time t
BUF
t
f
t
r
SDAn
t
HD:DAT
t
f
SCLn
S
t
HD:STA
1/f
SCL
1st clock cycle
S1C17M20/M21/M22/M23/M24/M25
TECHNICAL MANUAL (Rev. 1.0)
SPICLKn
SPICLKn
SDIn
t
SDO
SDOn
t
SSS
t
SDD
Hi-Z
= 1.8 to 5.5 V, V = 0 V, Ta = -40 to 85°C
SS
Condition
t
SU:DAT
t t
r HIGH
t
LOW
9th clock cycle
Seiko Epson Corporation
21 ELECTRICAL CHARACTERISTICS
t
SCYC
t
SCKH
t t
SDS SDH
Standard mode
Min. Typ. Max.
–
0 100
4.0 – –
4.7 – –
4.0 – –
4.7 – –
0 – –
250 – –
–
– 1,000
– – 300
4.0 – –
4.7 – –
* After this period, the first clock pulse is generated.
t
SU:STA
t
HD:STA
Sr
t
SCKL
t
SSH
t
SDZ
Fast mode
Min. Typ. Max.
–
0 400
0.6 – –
1.3 – –
0.6 – –
0.6 – –
0 – –
100 – –
–
– 300
– – 300
0.6 – –
1.3 – –
t
BUF
t
SU:STO
P S
S: START condition
Sr: Repeated START condition
P: STOP condition
Unit
kHz
µs
µs
µs
µs
µs
ns
ns
ns
µs
µs
21-11