MB82DBS04163C Datasheet, PDF (7/62 Pages) Fujitsu Component Limited. – MEMORY Mobile FCRAMTM CMOS 64 M Bit (4 M word×16 bit) Mobile Phone Application Specific Memory

MB82DBS04163C-70L
• Address Key
The address key has the following format.
Address Register
Pin
Name
Function
Key
Description
Note
A21
⎯
⎯
1 Unused bits must be 1
*1
00 16 M-bit Partial
01 8 M-bit Partial
A20, A19
PS
Partial Size
10 Reserved for future use
*2
11 Sleep [Default]
000 Reserved for future use
*2
001 Reserved for future use
*2
010 8 words
011 16 words
A18 to A16
BL
Burst Length
100 Reserved for future use
*2
101 Reserved for future use
*2
110 Reserved for future use
*2
111 Continuous
*3
A15
M
Mode
0 Synchronous Mode (Burst Read / Write)
*4
1 Asynchronous Mode [Default] (Page Read / Normal Write) *5
000 Reserved for future use
*2
001 3 clocks
A14 to A12
RL
Read Latency 010 4 clocks
011 5 clocks
1xx Reserved for future use
*2
0 Reserved for future use
*2
A11
BS Burst Sequence
1 Sequential
0 Burst Read & Burst Write
A10
SW
Single Write
1 Burst Read & Single Write
*6
A9
VE
Valid Clock
Edge
0 Falling Clock Edge
1 Rising Clock Edge
0 Reset to Page mode
*7
A8
RP Reset to Page
1 Remain the previous mode
A7
WC
Write Control
0
WE Single Clock Pulse Control without Write Suspend
Function
*6
1 WE Level Control with Write Suspend Function
A6 to A0
⎯
⎯
1 Unused bits must be 1
*1
*1: A21 and A6 to A0 must be all "1" in any cases.
*2: It is prohibited to apply this key.
*3: Please contact local FUJITSU representative for the use of BL = continuous option.
*4: If M = 0, all the registers must be set with appropriate Key input at the same time.
*5: If M = 1, PS must be set with appropriate Key input at the same time. Except for PS, all the other key inputs
must be "1".
*6: Burst Read & Single Write is not supported at WE Single Clock Pulse Control.
*7: Effective only when PS = 11.
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