1
EXTENDED COMMERCIAL TEMPERATURE RANGE
IDT74ALVC16820
3.3V CMOS 10-BIT FLIP-FLOP WITH DUAL 3-STATE OUTPUTS
AUGUST 1999
1999 Integrated Device Technology, Inc. DSC-4541/1c
IDT74ALVC16820
EXTENDED COMMERCIAL TEMPERATURE RANGE
3.3V CMOS 10-BIT
FLIP-FLOP WITH DUAL
3-STATE OUTPUTS
DESCRIPTION:
This 10-bit flip-flop is built using advanced dual metal CMOS technol-
ogy. The flip-flops of the ALVC16820 are edge-triggered D-type flip-
flops. On the positive transition of the clock (CLK) input, the device
provides true data at the Q outputs.
A buffered output-enable (OE) input can be used to place the ten
outputs in either a normal logic state (high or low logic level) or a high-
impedance state. In the high impedance state, the outputs neither load
nor drive the bus lines significantly. The high-impedance state and
increased drive provide the capability to drive bus lines without the need
for interface or pullup components. OE input does not affect the internal
operation of the flip-flops. Old data can be retained or new data can be
entered while the outputs are in the high-impedance state.
The ALVC16820 has been designed with a ±24mA output driver.
This driver is capable of driving a moderate to heavy load while
maintaining speed performance.
APPLICATIONS:
• SDRAM Modules
• PC Motherboards
• Workstations
FEATURES:
– 0.5 MICRON CMOS Technology
–Typical t
SK(0) (Output Skew) < 250ps
– ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
– 0.635mm pitch SSOP, 0.50mm pitch TSSOP,
and 0.40mm pitch TVSOP packages
– Extended commercial range of – 40°C to + 85°C
–V
CC = 3.3V ± 0.3V, Normal Range
–V
CC = 2.7V to 3.6V, Extended Range
–V
CC = 2.5V ± 0.2V
– CMOS power levels (0.4µW typ. static)
– Rail-to-Rail output swing for increased noise margin
Drive Features for ALVC16820:
– High Output Drivers: ±24mA
– Suitable for heavy loads
FUNCTIONAL BLOCK DIAGRAM
C1
D1
TO 9 OTHER CHANNELS
1OE 1
56
28
31Q2
2OE
CLK
D155
1Q1
2