Features
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First-in First-out Dual Port Memory
16384 bits x 9 Organization
Fast Flag and Access Times: 15, 30 ns
Wide Temperature Range: -55°C to +125°C
Programmable Half Full Flag
Fully Expandable by Word Width or Depth
Asynchronous Read/Write Operations
Empty, Full and Half Flags in Single Device Mode
Retransmit Capability
Bi-directional Applications
Battery Back-up Operation: 2V Data Retention
TTL Compatible
Single 5V + 10% Power Supply
No Single Event Latch Up Below an LET threshold of 80 MeV/mg/cm
2
Tested up to a Total Dose of 30 Krads (according to MIL-STD-883 TM1019)
Quality grades: QML Q and V with SMD 5962-93177 and ESSC with Specification
9301/48
Description
The M672061H implements a first-in first-out algorithm, featuring asynchronous
read/write operations. The FULL and EMPTY flags prevent data overflow and under-
flow. The Expansion logic allows unlimited expansion in word size and depth with no
timing penalties. Twin address pointers automatically generate internal read and write
addresses, and no external address information are required for the Atmel FIFOs.
Address pointers are automatically incremented with the write pin and read pin. The 9
bits wide data are used in data communications applications where a parity bit for
error checking is necessary. The Retransmit pin resets the Read pointer to zero with-
out affecting the write pointer. This is very useful for retransmitting data when an error
is detected in the system.
Using an array of eight transistors (8T) memory cell, the M672061H combines an
extremely low standby supply current (typ = 0.1 µA) with a fast access time at 15 ns
over the full temperature range. All versions offer battery backup data retention capa-
bility with a typical power consumption at less than 2 µW.
For military/space applications that demand superior levels of performance and reli-
ability the M672061H is processed according to the methods of the latest revision of
the MIL PRF 38535 (Q and V) or ESCC 9000.
Rad. Tolerant
High Speed
16 Kb x 9
Parallel FIFO with
Programmable
Flag
M672061H
4144K-AERO-04/07
1
ATMEL [ ATMEL CORPORATION ]
