TH50VSF2581AASB TOSHIBA [Toshiba Semiconductor], TH50VSF2581AASB Datasheet - Page 3

• Manufacturer Part Number: TH50VSF2581AASB
• Description: SRAM AND FLASH MEMORY MIXED MULTI-CHIP PACKAGE
• Manufacturer: TOSHIBA [Toshiba Semiconductor]

BLOCK DIAGRAM
MODE SELECTION
Flash Read
SRAM Read
Flash Write
SRAM Write
Flash Output Disable
SRAM Output Disable
Flash Standby
Flash Hardware
Reset / Standby
SRAM Standby
Notes: L = V
OPERATION MODE
F: Depends on flash memory operation mode.
S: Depends on SRAM operation mode.
When CIOS = V
Does not apply when CEF =
IL
; H = V
WP
A0~A21
RESET
RY
IH
CE2S
CIOS
/ACC
CIOF
CE
; X = V
CEF
CC
/
WE
UB
BY
SA
OE
LB
1
S
and CIOF = V
CEF
IH
H
H
H
H
H
H
X
X
H
H
H
X
X
X
L
L
L
L
or V
CE
IL
H
X
H
X
H
X
X
X
X
X
H
X
L
L
L
L
L
L
CE
1
S
CC
1
A0~A21
S
, Word Mode is selected for both SRAM and flash memory.
CE2S
= V
H
H
H
H
H
H
X
X
X
X
X
X
X
X
L
L
L
L
A0~A17
IL
and CE2S = V
OE
H
H
H
H
H
L
L
L
L
L
X
X
X
X
X
X
X
X
WE
H
H
H
H
H
H
H
H
X
X
X
X
X
L
L
L
L
L
V
V
SRAM Memory
Flash Memory
CCs
CCf
IH
RESET
at the same time.
32-Mbit
4-Mbit
H
H
H
H
H
H
H
H
H
H
H
X
X
X
X
X
X
L
V
V
SS
SS
UB
H
H
H
X
X
L
L
X
X
L
L
X
X
X
X
X
X
X
TH50VSF2580/2581AASB
LB
X
X
H
X
X
H
X
X
X
H
X
X
X
X
L
L
L
L
DQ0~DQ15
(DQ0~DQ7)
DQ0~DQ15
(DQ0~DQ7)
WP
/ACC
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2001-10-26 3/50
DQ0~DQ7 DQ8~DQ15
D
D
D
D
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
D
D
D
D
OUT
OUT
OUT
OUT
S
S
F
F
IN
IN
IN
IN
DQ0~DQ15
D
D
D
D
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
D
D
D
D
OUT
OUT
OUT
OUT
S
S
F
F
IN
IN
IN
IN