参数资料
型号: IDT707288L20PF8
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: SRAM
英文描述: 64K X 16 DUAL-PORT SRAM, 20 ns, PQFP100
封装: 14 X 14 MM, 1.40 MM, TQFP-100
文件页数: 1/16页
文件大小: 125K
代理商: IDT707288L20PF8
2000 Integrated Device Technology, Inc.
MAY 2000
DSC 3592/7
1
NO
T RECOMMENDED
FOR
NEW
DESIGNS
HIGH-SPEED
64K x 16 BANK-SWITCHABLE
DUAL-PORTED SRAM WITH
EXTERNAL BANK SELECTS
Features
64K x 16 Bank-Switchable Dual-Ported SRAM Architecture
– Four independent 16K x 16 banks
– 1 Megabit of memory on chip
Fast asynchronous address-to-data access time: 15ns
User-controlled input pins included for bank selects
Independent port controls with asynchronous address &
data busses
Four 16-bit mailboxes available to each port for inter-
IDT707288S/L
NOTES:
1. The first six address pins for each port serve dual functions. When
MBSEL = VIH, the pins serve as memory address inputs. When MBSEL = VIL, the pins
serve as mailbox address inputs.
2 . Each bank has an input pin assigned that allows the user to toggle the assignment of that bank between the two ports. Refer to Truth Table I for
more details.
Functional Block Diagram
processor communications; interrupt option
Interrupt flags with programmable masking
Dual Chip Enables allow for depth expansion without
external logic
UB and LB are available for x8 or x16 bus matching
TTL-compatible, single 5V (±10%) power supply
Available in a 100-pin Thin Quad Flatpack (14mm x 14mm)
16Kx16
MEMORY
ARRAY
(BANK 3)
MUX
R/
WL
CE0L
CE1L
UBL
LBL
OEL
I/O8L-15L
I/O0L-7L
A13L
A0L(1)
A5L(1)
A0L(1)
LBL/UBL
OEL
R/
WL
CEL
MAILBOX
INTERRUPT
LOGIC
16Kx16
MEMORY
ARRAY
(BANK 1)
MUX
16Kx16
MEMORY
ARRAY
(BANK 0)
MUX
CONTROL
LOGIC
I/O
CONTROL
BANK
DECODE
ADDRESS
DECODE
R/
WR
CE0R
CE1R
UBR
LBR
OER
I/O8R-15R
I/O0R-7R
A13R
A0R(1)
CONTROL
LOGIC
I/O
CONTROL
BANK
DECODE
ADDRESS
DECODE
A5R(1)
A0R(1)
LBR/UBR
OER
R/
WR
CER
3592 drw 01
MBSELR
INTR
MBSELL
INTL
BKSEL3(2)
BKSEL0(2)
BANK
SELECT
BA1R
BA0R
BA1L
BA0L
,
相关PDF资料
PDF描述
IDT70V05S35 8K X 8 DUAL-PORT SRAM, 35 ns, CPGA68
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