3.3V 64/32K X 18
SYNCHRONOUS
IDT70V5388/78
FOURPORT™ STATIC RAM
Features
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Counter wrap-around control
– Internal mask register controls counter wrap-around
– Counter-Interrupt flags to indicate wrap-around
Mask register readback on address lines
Global Master reset for all ports
Dual Chip Enables on all ports for easy depth expansion
Separate upper-word and lower-word controls on all ports
272-BGA package (27mm x 27mm 1.27mm ball pitch) and
256-BGA package (17mm x 17mm 1.0mm ball pitch)
Commercial and Industrial temperature ranges
JTAG boundary scan
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True four-ported memory cells which allow simultaneous
access of the same memory location
Synchronous Pipelined device
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– 64/32K x 18 organization
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Pipelined output mode allows fast 200MHz operation
High Bandwidth up to 14 Gbps (200MHz x 18 bits wide x
4 ports)
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LVTTL I/O interface
High-speed clock to data access 3.0ns (max.)
3.3V Low operating power
Interrupt flags for message passing
Width and depth expansion capabilities
Counter readback on address lines
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MBIST (Memory Built-In Self Test) controller
Green parts available, see ordering information
Port - 1 Logic Block Diagram(2)
R/
W
P1
0
1
1/0
UBP1
CE0P1
CE1P1
LBP1
OEP1
I/O9P1 - I/O17P1
I/O0P1 - I/O8P1
Port 1
I/O
Control
TRST
TMS
JTAG
TCK
TDI
Controller
MBIST
TDO
CLKMBIST
Addr.
Read
Back
Port 1
Readback
Register
MRST
(1)
A
0P1 - A15P1
Port 1
Mask
,
Register
CNTRDP1
MKRDP1
MKLDP1
Port 1
Address
Decode
64KX18
Memory
Array
Priority
Decision
Logic
Port 1
CNTINCP1
CNTLDP1
CNTRSTP1
Counter/
Address
Register
CLKP1
R/
WP1
Port 1
Interrupt
Logic
CE0P1
CE1P1
CLKP1
MRST
CNTINTP1
INTP1
MRST
5649 drw 01
NOTE:
1. A15x is a NC for IDT70V5378.
2. Port 2, Port 3, and Port 4 Logic Blocks are similar to Port 1 Logic Blocks.
OCTOBER 2008
1
DSC-5649/5
©2008IntegratedDeviceTechnology,Inc.