|
|
Numéro de référence | IDT70V631S | ||
Description | HIGH-SPEED 3.3V 256K x 18 ASYNCHRONOUS DUAL-PORT STATIC RAM | ||
Fabricant | IDT | ||
Logo | |||
1 Page
HIGH-SPEED 3.3V 256K x 18
ASYNCHRONOUS DUAL-PORT
STATIC RAM
IDT70V631S
Features
◆ True Dual-Port memory cells which allow simultaneous
access of the same memory location
◆ High-speed access
– Commercial: 10/12/15ns (max.)
– Industrial: 12ns (max.)
◆ Dual chip enables allow for depth expansion without
www.DataSheet4U.ecoxmternal logic
◆ IDT70V631 easily expands data bus width to 36 bits or
more using the Master/Slave select when cascading more
than one device
◆ M/S = VIH for BUSY output flag on Master,
M/S = VIL for BUSY input on Slave
◆ Busy and Interrupt Flags
◆ On-chip port arbitration logic
◆ Full on-chip hardware support of semaphore signaling
between ports
Functional Block Diagram
UBL
LBL
R/WL
CE0L
CE1L
BB
EE
01
LL
◆ Fully asynchronous operation from either port
◆ Separate byte controls for multiplexed bus and bus
matching compatibility
◆ Supports JTAG features compliant to IEEE 1149.1
– Due to limited pin count, JTAG is not supported on the
128-pin TQFP package.
◆ LVTTL-compatible, single 3.3V (±150mV) power supply for
core
◆ LVTTL-compatible, selectable 3.3V (±150mV)/2.5V (±100mV)
power supply for I/Os and control signals on each port
◆ Available in a 128-pin Thin Quad Flatpack, 208-ball fine
pitch Ball Grid Array, and 256-ball Ball Grid Array
◆ Industrial temperature range (–40°C to +85°C) is available
for selected speeds
BB
EE
10
RR
UBR
LBR
R/WR
CE0 R
CE1 R
OEL
I/O0L- I/O17L
Dout0-8_L
Dout9-17_L
Dout0-8_R
Dout9-17_R
256K x 18
MEMORY
ARRAY
Din_L
Din_R
OER
I/O0R - I/O17R
A17L
A0L
Address
Decoder
ADDR_L
ADDR_R
Address
Decoder
A17R
A0R
BUSYL
SEML
INTL
CE0L
CE1L
OEL
R/WL
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
M/S
TDI
TDO
JTAG
NOTES:
1. BUSY is an input as a Slave (M/S=VIL) and an output when it is a Master (M/S=VIH).
2. BUSY and INT are non-tri-state totem-pole outputs (push-pull).
©2003 Integrated Device Technology, Inc.
1
OER
R/WR
CE0 R
CE1 R
TMS
TCK
TRST
BUSYR
SEMR
INTR
5622 drw 01
OCTOBER 2003
DSC-5622/5
|
|||
Pages | Pages 23 | ||
Télécharger | [ IDT70V631S ] |
No | Description détaillée | Fabricant |
IDT70V631S | HIGH-SPEED 3.3V 256K x 18 ASYNCHRONOUS DUAL-PORT STATIC RAM | IDT |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
www.DataSheetWiki.com | 2020 | Contactez-nous | Recherche |