S7760A Datasheet, PDF (10/54 Pages) Seiko Instruments Inc – PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E2PROM CIRCUIT)

PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E²PROM CIRCUIT)
S-7760A
Rev.2.0_01
Table 11 Characteristics of Period
Item
Symbol
Min.
Typ.
Max.
Unit
Write period to E²PROM
tWR
−
2.0
5.0
ms
Delay time accuracy (short-time setting)^*1
Delay time accuracy (long-time setting)^*1
tDLY1
0.8 × T
T
1.2 × T
μs
tDLY2
0.8 × LT
LT
1.2 × LT
μs
*1. Refer to Figure 16 Timer Setting Register.
T represents time reference (timer scale) in the short-time setting.
LT represents time reference (timer scale) in the long-time setting.
tWR
SCL
SDA
D0
Write Data
Stop Condition
Acknowledgement
Signal
Figure 12 Write Cycle Timing
Start Condition
10