INDUSTRIAL TEMPERATURE RANGE
IDT74ALVCH162245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
1
G41G50G52G49G4CG20G31G39G39G39G49G4EG44G55G53G54G52G49G41G4CG20G54G45G4DG50G45G52G41G54G55G52G45G20G52G41G4EG47G45
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
© 1999 Integrated Device Technology, Inc. DSC-4748/1
G46._G45G41G54G55G52G45G53G3A
• 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
G46._G55G4EG43G54G49G4FG4EG41G4CG20G42G4CG4FG43G4BG20G44G49G41G47G52G41G4D
IDT74ALVCH1622453.3V CMOS 16-BIT BUS
TRANSCIEVER WITH
3-STATE OUTPUTS
AND BUS-HOLD
G44G45G53G43G52G49G50G54G49G4FG4EG3A
This 16-bit bus transceiver is built using advanced dual metal CMOS
technology. The ALVCH162245 is designed for asynchronous commu-
nication between data buses. The control-function implementation mini-
mizes external timing requirements.
This device can be used as two 8-bit transceivers or one 16-bit
transceiver. It allows data transmission from the A bus to the B bus or from
the B bus to the A bus, depending on the logic level at the direction-control
(DIR) input. The output-enable (OE) input can be used to disable the
device so that the buses are effectively isolated.
The ALVCH162245 has series resistors in the device out-put structure
of the “A” port which will significantly reduce line noise when used with light
loads. This driver has been designed to drive ±12mA at the designated
threshold levels. The “B” port has a ±24mA driver.
The ALVCH162245 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.
G41G50G50G4CG49G43G41G54G49G4FG4EG53G3A
3.3V high speed systems
3.3V and lower voltage computing systems
G44G52G49G56G45G20G20G46._G45G41G54G55G52G45G53G3A
Balanced Output Drivers: ±12mA (A port)
High Output Drivers: ±24mA (B port)
1DIR
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1A8
1B8
1B7
1B6
1B5
1B4
1B3
1B2
1B1
1OE
2DIR
2A1
2A2
2A3
2A4
2A5
2A6
2A7
2A8
2B8
2B7
2B6
2B5
2B4
2B3
2B2
2B1
2OE
1
47
46
44
43
41
40
38
37
12
11
9
8
6
5
3
2
48
24
36
35
33
32
30
29
27
26
23
22
20
19
17
16
14
13
25