S-7750C Datasheet, PDF (9/44 Pages) Seiko Instruments Inc – PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E2PROM CIRCUIT)

PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E²PROM CIRCUIT)
Rev.1.1_00
S-7750C
Table 10 Characteristics of Period
Item
Symbol
Min.
Typ.
Max.
Unit
Write period to E²PROM
t_WR
−
2.0
5.0
ms
Delay time accuracy (short-time setting)^*1
t_DLY1
0.8×T
T
1.2×T
µs
Delay time accuracy (long-time setting)^*1
t_DLY2
0.8×LT
LT
1.2×LT
µs
Timeout^*1
t_OUT
−
9×LT
−
µs
*1. Refer to “Figure 16 Timer Setting Register DO7 to DO0 / E²PROM” “Figure 17 Example of Using Timer Setting for
DO7 to DO0 Register”.
T represents time reference (timer scale) in the short-time setting.
LT represents time reference (timer scale) in the long-time setting.
t_WR
SCL
SDA
B0
Write Data
Stop Condition
Acknowledgement
Signal
Figure 9 Write Cycle Timing
Start Condition
Seiko Instruments Inc.
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