IDT71216S12PF Integrated Device Technology, IDT71216S12PF Datasheet - Page 4

• Manufacturer Part Number: IDT71216S12PF
• Description: BiCMOS StaticRAM 240K (16K x 15-BIT) CACHE-TAG RAM For PowerPCO and RISC Processors
• Manufacturer: Integrated Device Technology

CHIP SELECT FUNCTION
IDT71216
BiCMOS 16K x 15 CACHE-TAG RAM
TRUTH TABLES
RESET FUNCTION
POWER-DOWN FUNCTION
READ AND WRITE FUNCTIONS
READ FUNCTION
WRITE FUNCTION
NOTES:
1. "H" = V
2. This table applies when
3. D
CS1
CS1
NOTES:
1. "H" = V
2.
3.
CHIP SELECT, RESET, AND POWER-DOWN FUNCTIONS
OET
OET OES
H
X
H
X
X
X
X
L
L
L
X
H
X
H
X
X
L
L
OET
OES
OUT
CS2
X
H
H
H
X
X
X
X
L
L
,
OES WET
is LOW.
in this case is the same as DIN; that is, the input data is written through to the outputs during the write operation.
OES
H
H
X
L
X
X
X
L
IH
IH
, "L" = V
, "L" = V
RESET
RESET PWRDN
, TT1, TAH,
X
X
X
X
L
L
L
L
L
L
WET WES
H
X
X
X
X
X
L
L
IL
IL
PWRDN
, "X" = don't care, "–" = unrelated.
, "X" = don't care, "–" = unrelated.
WES
H
H
H
H
H
H
H
H
H
X
X
X
X
X
X
L
L
L
TAIN
CS1
CLK
CLK
and SFUNC are "X" for this table.
is LOW and CS2,
X
X
X
X
X
X
X
X
WET
WET WES
H
H
H
H
H
X
X
X
X
L
TT1
X
X
X
X
X
X
X
X
WES TAOE
H
H
H
H
H
X
X
X
X
L
D
TAG VLD
Hi-Z
(1, 2)
D
RESET
OUT
–
–
–
–
–
IN
TAOE
X
X
X
H
X
X
X
X
X
L
, and
D
D
–
–
–
–
–
–
IN
IN
IN
PWRDN
TAG VLD
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
DTY
–
–
–
D
D
–
–
–
–
–
–
IN
IN
are HIGH.
IN
14.3
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
L
L
–
–
–
WT
(3)
(3)
D
D
OUT
–
–
–
–
–
–
IN
IN
IN
DTY
TAOE
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
VLD
L
L
D
–
–
–
D
D
(3)
(3)
Hi-Z
Hi-Z
OUT
OUT
OUT
OUT
–
–
–
, TAH,
OUT
(1, 2)
(3)
WT
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
DTY
L
L
D
TAIN
D
D
–
–
–
(3)
(3)
OUT
Hi-Z
Hi-Z
OUT
OUT
OUT
–
–
–
OUT
(3)
and SFUNC are "X" for this table.
MATCH
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
L
L
WT
D
–
–
–
(3)
(3)
D
D
Hi-Z
Hi-Z
OUT
OUT
OUT
–
–
–
OUT
COMMERCIAL TEMPERATURE RANGE
(3)
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
TA TA
H
–
–
–
MATCH
D
D
D
D
OUT
OUT
OUT
OUT
L
–
L
L
OPERATION POWER
Reset Status
Reset Status
Reset Status
Reset Status
Power-down
Not Allowed
Not Allowed
Deselected
Deselected
Selected
Read Status Bits
Write Status Bits
Write Status Bits
TAG I/O Disable
Status Disabled
Read TAG I/O
Write TAG I/O
OPERATION
Not Allowed
Standby
Active
Active
Active
Active
Active
Active
Active
–
–
3067 tbl 02
3067 tbl 03
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