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参数资料
| 型号： | 70P249L65BYGI |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | SRAM |
| 英文描述： | 4K X 16 DUAL-PORT SRAM, 40 ns, PBGA100 |
| 封装： | 0.50 MM PITCH, GREEN, BGA-100 |
| 文件页数： | 1/22页 |
| 文件大小： | 146K |
| 代理商： | 70P249L65BYGI |
1
2008 Integrated Device Technology, Inc.
OCTOBER 2008
DSC-7146/1
I/O15L – I/O8L
I/O7L – I/O0L
ADVL
UBL
LBL
MSELL
A13L – A0L
SFEN#
IRR1 – IRR0
(2)
ODR4 – ODR0
IRR/ODR
Mux’ed
Address /
Data
I/O Control
Memory Array
16K/8K/4K x 16
CSL
OEL
WEL
BUSYL
INTL
Control Logic
CSR
OER
WER
BUSYR
INTR
Address
Decode
I/O15R – I/O8R
I/O7R – I/O0R
ADVR
UBR
LBR
Mux’ed
Address /
Data
I/O Control
MSELR
A13R – A0R
Data <15..0>
AddrR <13..0>
Address
Decode
AddrR <13..0>
7146 drw 01
IDT70P269/259/249L
VERY LOW POWER 1.8V
16K/8K/4K X 16 DUAL-PORT
STATIC RAM
Features
◆
True Dual-Ported memory cells which allow simultaneous
reads of the same memory location
◆
Both ports configurable to standard SRAM or time-
multiplexed address/data interface
◆
High-speed access
– Industrial: 65ns (max.), ADM mode
– Industrial: 40ns (max.), Standard SRAM mode
◆
Low-power operation
IDT70P269/259/249L
Active: 27mW (typ.)
Standby: 3.6
W (typ.)
◆
Supports 3.0V, 2.5V and 1.8V I/O's
◆
Power supply isolation functionality to aid system power
management
◆
Separate upper-byte and lower-byte control
◆
Input Read Register
◆
Output Drive Register
◆
BUSY and Interrupt Flag
◆
On-chip port arbitration logic
◆
Fully asynchronous operation from either port
◆
Available in 100 Ball 0.5mm-pitch BGA
◆
Industrial temperature range (-40°C to +85°C)
◆
Green parts available, see ordering information
Functional Block Diagram
NOTES:
1. A13 - A0 for IDT70P269; A12 - A0 for IDT70P259; A11 - A0 for IDT70P249.
2. IRR0 and IRR1 are not available for IDT70P269.
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