Freescale Semiconductor, Inc.
SEMICONDUCTOR TECHNICAL DATA
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by MCM69C433/D
MCM69C433
SCM69C433
16K x 64 CAM
The MCM69C433 is a flexible content–addressable memory (CAM) that can
contain 16K entries of 64 bits each. The widths of the match field and the output
field are programmable, and the match time is designed to be 240 ns. As a result,
the MCM69C433 is well suited for datacom applications such as Virtual Path
Identifier/Virtual Circuit Identifier (VPI/VCI) translation in ATM switches up to
OC12 (622 Mbps) data rates and Media Access Control (MAC) address lookup
in Ethernet/Fast Ethernet bridges. The match duty cycle of the MCM69C433 is
user–defined, with a trade–off between the time between the match request rate
and the rate of new entries added to the CAM per second.
TQ PACKAGE
TQFP
CASE 983A–01
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16K Entries
240 ns Match Time
Mask Register to “Don’t Care” Selected Bits
Depth Expansion by Cascading Multiple Devices
66 MHz Maximum Clock Rate
Programmable Match and Output Field Widths
Concurrent Matching of Virtual Path Circuits and Virtual Connection
Circuits in ATM Mode
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Separate Ports for Control and Match Operations
450 ns Insertion Time if 1 of 14 Entry Queue Locations is Empty
120 ms Initialization Time After Fast Insertion (at Power–Up Only)
Single 3.3 V ±5% Supply
IEEE Standard 1149.1 Test Port (JTAG)
100–Pin TQFP Package
Related Products
— MCM69C232, MCM69C432, MCM69C233 (CAMs)
CONTROL PORT
MATCH PORT
14 x 64
ENTRY QUEUE
MQ31 – MQ0
A2 – A0
DQ15 – DQ0
STATUS/
CONTROL
LOGIC
16K x 64
CAM
TABLE
K
G
SEL
WE
IRQ
LH/SM
LL
DTACK
MC
MS
VPC
INPUT REG
RESET
KMODE
REV 3
6/11/01
Motorola, Inc. 2001
MOTOROLA FAST SRAM
MCM69C433•SCM69C433
For More Information On This Product,
Go to: www.freescale.com
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