S-93C46A Datasheet, PDF (33/53 Pages) Seiko Instruments Inc – CMOS SERIAL E2PROM

Collection of Product FAQs
Author: Kano Tomoo
Date: 98/11/12 (Thursday) 10:17 (modified: 99/01/13)
<Information level>
A:
Public (Printing O.K.)
Index:
D: Technical terms
<Product>
Division name: 01 IC
Category 1: 12 Memory
Category 2:
Cal. No.:
2. Serial EEPROM
Overall
Related documents:
Question:
What about the basic terms (verify, ready/busy function)?
Answer:
Verify, ready/busy (R/B) function
This is a function to find out about an actual write operation (time). There are two methods, a
“monitoring method based on the output condition of the DO pin” and a “method for monitoring the
output condition of the Ready/Busy pin.” This function eliminates the need to wait 10 ms for writing to be
completed, thereby minimizing the write time according to the performance of the IC (performance
value: 4 ms to 5 ms; 1 ms is ensured for the S-24C series).
t_CDS
CS
VERIFY
Standby
SK
1 2 3 4 5 6 7 8 9 10
25
DI
1 ^{0 1 A5 A4 A3 A2 A1 A0 D15}
D0
t_SV
t_HZ1
DO
Hi-Z
busy _{ready Hi-Z}
t_PR
(Note) Note that this differs from a normal verify function, which checks written data for errors.
<Remarks>
FAQ No.: 12018
32