IDT74ALVCH16952 Datasheet, PDF (1/6 Pages) Integrated Device Technology – 3.3V CMOS 16-BIT REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS AND BUS-HOLD

IDT74ALVCH16952
3.3V CMOS 16-BIT REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS 16-BIT
REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
AND BUS-HOLD
IDT74ALVCH16952
FEATURES:
• 0.5 MICRON CMOS Technology
• Typical tSK(o) (Output Skew) < 250ps
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
• VCC = 3.3V ± 0.3V, Normal Range
• VCC = 2.7V to 3.6V, Extended Range
• VCC = 2.5V ± 0.2V
• CMOS power levels (0.4µ W typ. static)
• Rail-to-Rail output swing for increased noise margin
• Available in SSOP, TSSOP, and TVSOP packages
DRIVE FEATURES:
• High Output Drivers: ±24mA
• Suitable for heavy loads
DESCRIPTION:
This 16-bit registered transceiver is built using advanced dual metal
CMOS technology. The ALVCH16952 contains two sets of D-type flip-flops
for temporary storage of data flowing in either direction. This device can be
used as two 8-bit transceivers or one 16-bit transceiver. Data on the A or
B bus is stored in the registers on the low-to-high transition of the clock
(CLKAB or CLKBA) input provided that the clock-enable (CLKENAB or
CLKENBA) input is low. Taking the output-enable (OEAB or OEBA) input
low accesses the data on either port.
The ALVCH16952 has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
The ALVCH16952 has “bus-hold” which retains the inputs’ last state
whenever the input bus goes to a high impedance. This prevents floating
inputs and eliminates the need for pull-up/down resistors.
APPLICATIONS:
• 3.3V high speed systems
• 3.3V and lower voltage computing systems
FUNCTIONAL BLOCK DIAGRAM
54
1CLKENBA
1CLKBA ⁵⁵
1OEAB ¹
1CLKENAB ³
2
1CLKAB
56
1OEBA
5
1A1
C
CE
D
C
CE
D
31
2CLKENBA
2CLKBA ³⁰
2OEAB ²⁸
2CLKENAB ²⁶
27
2CLKAB
29
2OEBA
52
1B1
15
2A1
TO SEVEN OTHER CHANNELS
C
CE
D
C
CE
D
TO SEVEN OTHER CHANNELS
42
2B1
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
©1999 Integrated Device Technology, Inc.
MARCH 1999
DSC-4227/1