IDT74ALVCH16245PA8 [IDT]

Bus Transceiver, ALVC/VCX/A Series, 2-Func, 8-Bit, True Output, CMOS, PDSO48, TSSOP-48;
IDT74ALVCH16245PA8
型号: IDT74ALVCH16245PA8
厂家: INTEGRATED DEVICE TECHNOLOGY    INTEGRATED DEVICE TECHNOLOGY
描述:

Bus Transceiver, ALVC/VCX/A Series, 2-Func, 8-Bit, True Output, CMOS, PDSO48, TSSOP-48

光电二极管 逻辑集成电路
文件: 总6页 (文件大小:130K)
中文:  中文翻译
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3.3V CMOS 16-BIT BUS  
TRANSCEIVER WITH  
IDT74ALVCH16245  
3-STATE OUTPUTS  
AND BUS-HOLD  
DESCRIPTION:  
FEATURES:  
0.5 MICRON CMOS Technology  
TypicaltSK(0) (Output Skew) < 250ps  
This 16-bit bus transceiver is built using advanced dual metal CMOS  
technology. The ALVCH16245 is designed for asynchronous commu-  
nication between data buses. The control-function implementation  
minimizes external timing requirements.  
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  
VCC = 3.3V ± 0.3V, Normal Range  
VCC = 2.7V to 3.6V, Extended Range  
VCC = 2.5V ± 0.2V  
CMOS power levels (0.4µW typ. static)  
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.  
Rail-to-Rail output swing for increased noise margin  
The ALVCH16245 has been designed with a ±24mA output driver.  
This driver is capable of driving a moderate to heavy load while  
maintaining speed performance.  
Drive Features for ALVCH16245:  
High Output Drivers: ±24mA  
Suitable for heavy loads  
The ALVCH16245 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  
1
24  
1DIR  
2DIR  
48  
2
25  
13  
OE  
OE  
2
1
47  
36  
35  
33  
32  
30  
1A1  
2A1  
B
1
1
B
2
1
46  
1A2  
2A2  
2A3  
3
14  
16  
17  
1B2  
1B3  
2B2  
44  
1A3  
5
B
2
3
43  
A
A
2 4  
1
4
6
1B4  
2B4  
2B5  
2B6  
41  
40  
38  
1A5  
2A5  
2A6  
8
19  
20  
22  
B
5
1
29  
27  
A
1
6
9
B
6
1
1A7  
1A8  
A
2
7
11  
B
7
1
2B7  
2B8  
37  
26  
2A8  
12  
23  
1B8  
EXTENDED COMMERCIAL TEMPERATURE RANGE  
MARCH1999  
1
c
1999 Integrated Device Technology, Inc.  
DSC-4697/-  
IDT74ALVCH16245  
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS  
EXTENDED COMMERCIAL TEMPERATURE RANGE  
PIN CONFIGURATION  
ABSOLUTE MAXIMUM RATING (1)  
Symbol  
Description  
Terminal Voltage  
Max.  
Unit  
(2)  
VTERM  
– 0.5 to + 4.6  
V
with Respect to GND  
Terminal Voltage  
1DIR  
1B1  
1
2
48  
47  
46  
45  
44  
1OE  
(3)  
VTERM  
– 0.5 to  
VCC + 0.5  
V
1A1  
with Respect to GND  
Storage Temperature  
3
1B2  
TSTG  
IOUT  
IIK  
– 65 to + 150  
°C  
1A2  
GND  
1A3  
1A4  
DC Output Current  
– 50 to + 50  
± 50  
mA  
mA  
4
5
GND  
1B3  
Continuous Clamp Current,  
VI < 0 or VI > VCC  
Continuous Clamp Current, VO < 0  
6
IOK  
– 50  
mA  
mA  
1B4  
43  
42  
41  
40  
ICC  
ISS  
Continuous Current through  
each VCC or GND  
±100  
7
VCC  
1B5  
VCC  
1A5  
8
NEW16link  
NOTES:  
1. Stresses greater than those listed under ABSOLUTE MAXIMUM  
RATINGS may cause permanent damage to the device. This is a  
stress rating only and functional operation of the device at these or  
any other conditions above those indicated in the operational sections  
of this specification is not implied. Exposure to absolute maximum  
rating conditions for extended periods may affect reliability.  
2. VCC terminals.  
9
1B6  
GND  
1B7  
1A6  
GND  
1A7  
1A8  
2A1  
10  
39  
38  
37  
36  
11  
12  
13  
14  
15  
16  
17  
18  
SO48-1  
SO48-2  
SO48-3  
1B8  
3. All terminals except VCC.  
2B1  
2B2  
GND  
2B3  
35  
34  
2A2  
GND  
2A3  
2A4  
VCC  
CAPACITANCE (TA = +25oC, f = 1.0MHz)  
Symbol  
Parameter(1)  
Conditions  
Typ.  
Max.  
Unit  
33  
CIN  
Input Capacitance  
VIN = 0V  
5
7
pF  
2B4  
32  
31  
30  
COUT  
CI/O  
Output  
Capacitance  
I/O Port  
VOUT = 0V  
VIN = 0V  
7
7
9
9
pF  
pF  
VCC  
19  
20  
21  
22  
23  
2B5  
2A5  
Capacitance  
NEW16link  
29  
28  
27  
26  
25  
2B6  
2A6  
NOTE:  
1. As applicable to the device type.  
GND  
GND  
2B7  
2B8  
2A7  
2A8  
2OE  
FUNCTION TABLE (each 8-bit section)(1)  
24  
2DIR  
Inputs  
xOE  
xDIR  
Outputs  
Bus B Data to Bus A  
SSOP/  
TSSOP/TVSOP  
TOP VIEW  
L
L
L
H
X
Bus A Data to Bus B  
High Z State  
H
NOTE:  
1. H = HIGH Voltage Level  
L = LOW Voltage Level  
X = Don’t Care  
PIN DESCRIPTION  
Pin Names  
Description  
Z = High-Impedance  
xOE  
xDIR  
xAx  
Output Enable Inputs (Active LOW)  
Direction Control Inputs  
Side A Inputs or 3-State Outputs(1)  
Side B Inputs or 3-State Outputs(1)  
xBx  
NOTE:  
1. These pins have “Bus-Hold.” All other pins are standard inputs,  
outputs, or I/Os.  
2
IDT74ALVCH16245  
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS  
EXTENDED COMMERCIAL TEMPERATURE RANGE  
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE  
Following Conditions Apply Unless Otherwise Specified:  
Operating Condition: TA = – 40°C to +85°C  
Symbol  
Parameter  
Test Conditions  
Min.  
Typ.(1)  
Max.  
Unit  
VIH  
Input HIGH Voltage Level  
VCC = 2.3V to 2.7V  
VCC = 2.7V to 3.6V  
VCC = 2.3V to 2.7V  
VCC = 2.7V to 3.6V  
VCC = 3.6V  
1.7  
V
2
0.7  
VIL  
Input LOW Voltage Level  
V
0.8  
IIH  
Input HIGH Current  
VI = VCC  
± 5  
± 5  
± 10  
± 10  
– 1.2  
µA  
IIL  
Input LOW Current  
VCC = 3.6V  
VI = GND  
VO = VCC  
VO = GND  
IOZH  
IOZL  
VIK  
VH  
High Impedance Output Current  
(3-State Output pins)  
Clamp Diode Voltage  
Input Hysteresis  
VCC = 3.6V  
µA  
µA  
V
VCC = 2.3V, IIN = – 18mA  
VCC = 3.3V  
– 0.7  
100  
0.1  
mV  
µA  
ICCL  
ICCH  
ICCZ  
ICC  
VCC = 3.6V  
VIN = GND or VCC  
40  
Quiescent Power Supply Current  
Quiescent Power Supply  
Current Variation  
One input at VCC 0.6V,  
other inputs at VCC or GND  
750  
µA  
NEW16link  
NOTE:  
1. Typical values are at VCC = 3.3V, +25°C ambient.  
BUS-HOLD CHARACTERISTICS  
Symbol  
Parameter(1)  
Test Conditions  
Min.  
Typ.(2)  
Max.  
Unit  
IBHH  
Bus-Hold Input Sustain Current  
VCC = 3.0V  
VCC = 2.3V  
VCC = 3.6V  
VI = 2.0V  
VI = 0.8V  
VI = 1.7V  
VI = 0.7V  
VI = 0 to 3.6V  
– 75  
µA  
IBHL  
75  
– 45  
45  
IBHH  
IBHL  
Bus-Hold Input Sustain Current  
Bus-Hold Input Overdrive Current  
µA  
IBHHO  
IBHLO  
± 500  
µA  
NEW16link  
NOTES:  
1. Pins with Bus-hold are identified in the pin description.  
2. Typical values are at VCC = 3.3V, +25°C ambient.  
3
IDT74ALVCH16245  
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS  
EXTENDED COMMERCIAL TEMPERATURE RANGE  
OUTPUT DRIVE CHARACTERISTICS  
Symbol  
Parameter  
Output HIGH Voltage  
Test Conditions(1)  
IOH = – 0.1mA  
Min.  
Max.  
Unit  
VOH  
VCC = 2.3V to 3.6V  
VCC = 2.3V  
VCC – 0.2  
V
IOH = – 6mA  
IOH = – 12mA  
2
VCC = 2.3V  
1.7  
2.2  
2.4  
2
VCC = 2.7V  
VCC = 3.0V  
VCC = 3.0V  
IOH = – 24mA  
IOL = 0.1mA  
IOL = 6mA  
VOL  
Output LOW Voltage  
VCC = 2.3V to 3.6V  
VCC = 2.3V  
0.2  
0.4  
0.7  
0.4  
0.55  
V
IOL = 12mA  
IOL = 12mA  
IOL = 24mA  
VCC = 2.7V  
VCC = 3.0V  
NEW16link  
NOTE:  
1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the  
appropriate VCC range. TA = – 40°C to + 85°C.  
o
OPERATING CHARACTERISTICS, T = 25 C  
A
VCC = 2.5V ± 0.2V  
VCC = 3.3V ± 0.3V  
Unit  
Symbol  
Parameter  
Power Dissipation Capacitance  
Outputs enabled  
Test Conditions  
Typical  
Typical  
CPD  
CL = 0pF, f = 10Mhz  
22  
29  
pF  
CPD  
Power Dissipation Capacitance  
Outputs disabled  
4
5
pF  
(1)  
SWITCHING CHARACTERISTICS  
VCC = 2.5V ± 0.2V  
VCC = 2.7V  
VCC = 3.3V ± 0.3V  
Symbol  
tPLH  
Parameter  
Propagation Delay  
Min.  
Max.  
Min.  
Max.  
Min.  
Max.  
Unit  
1
3.7  
3.6  
1
3
ns  
tPHL  
xAx to xBx or xBx to xAx  
Output Enable Time  
xOE to xAx or xBx  
tPZH  
1
1
5.7  
5.2  
5.4  
4.6  
1
1
4.4  
4.1  
500  
ns  
tPZL  
tPHZ  
Output Disable Time  
xOE to xAx or xBx  
ns  
ps  
tPLZ  
(2)  
tSK(o)  
Output Skew  
NOTES:  
1. See test circuits and waveforms. TA = – 40°C to + 85°C.  
2. Skew between any two outputs of the same package and switching in the same direction.  
4
IDT74ALVCH16245  
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS  
EXTENDED COMMERCIAL TEMPERATURE RANGE  
TEST CIRCUITS AND WAVEFORMS:  
PROPAGATION DELAY  
TEST CONDITIONS  
Symbol  
(1)  
(1)  
(2)  
VCC = 3.3V±0.3V VCC = 2.7V VCC = 2.5V±0.2V  
Unit  
V
IH  
VLOAD  
6
6
2 x Vcc  
Vcc  
V
SAME PHASE  
INPUT TRANSITION  
VT  
0V  
VIH  
VT  
2.7  
1.5  
300  
300  
50  
2.7  
1.5  
300  
300  
50  
V
V
tPHL  
tPLH  
VOH  
VT  
Vcc / 2  
150  
OUTPUT  
VLZ  
VHZ  
CL  
mV  
mV  
VOL  
tPHL  
tPLH  
150  
VIH  
VT  
0V  
OPPOSITE PHASE  
INPUT TRANSITION  
30  
pF  
NEW16link  
ALVC Link  
TEST CIRCUITS FOR ALL OUTPUTS ENABLE AND DISABLE TIMES  
VLOAD  
DISABLE  
VCC  
ENABLE  
VIH  
VT  
Open  
GND  
CONTROL  
INPUT  
500  
0V  
tPZL  
tPLZ  
VIN  
VOUT  
Pulse(1, 2)  
Generator  
VLOAD/2  
VT  
D.U.T.  
VLOAD/2  
OUTPUT  
NORMALLY  
LOW  
SWITCH  
CLOSED  
VLZ  
VOL  
500Ω  
tPHZ  
t
PZH  
RT  
CL  
OUTPUT  
NORMALLY  
HIGH  
VOH  
VHZ  
SWITCH  
OPEN  
VT  
0V  
ALVC Link  
DEFINITIONS:  
0V  
CL= Load capacitance: includes jig and probe capacitance.  
RT = Termination resistance: should be equal to ZOUT of the Pulse  
ALVC Link  
NOTE:  
1. Diagram shown for input Control Enable-LOW and input Control  
Disable-HIGH.  
Generator.  
NOTES:  
1. Pulse Generator for All Pulses: Rate 10MHz; tF 2.5ns; tR 2.5ns.  
2. Pulse Generator for All Pulses: Rate 10MHz; tF 2ns; tR 2ns.  
SET-UP, HOLD, AND RELEASE TIMES  
VIH  
DATA  
INPUT  
SWITCH POSITION  
VT  
0V  
tSU  
tH  
Test  
Switch  
VIH  
VT  
0V  
TIMING  
INPUT  
Open Drain  
Disable Low  
Enable Low  
Disable High  
Enable High  
All Other tests  
VLOAD  
tREM  
VIH  
VT  
0V  
ASYNCHRONOUS  
CONTROL  
GND  
Open  
VIH  
VT  
0V  
SYNCHRONOUS  
CONTROL  
tSU  
tH  
NEW16link  
ALVC Link  
OUTPUT SKEW - TSK (x)  
VIH  
VT  
0V  
INPUT  
PULSE WIDTH  
tPLH1  
tPHL1  
VOH  
VT  
LOW-HIGH-LOW  
PULSE  
VT  
OUTPUT 1  
tSK (x)  
VOL  
tSK (x)  
tW  
VOH  
VT  
HIGH-LOW-HIGH  
PULSE  
VT  
OUTPUT 2  
VOL  
ALVC Link  
tPLH2  
tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1  
tPHL2  
ALVC Link  
NOTES:  
1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs.  
2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.  
5
IDT74ALVCH16245  
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS  
EXTENDED COMMERCIAL TEMPERATURE RANGE  
ORDERINGINFORMATION  
IDT  
XX  
ALVC  
X
XX  
XXX  
XX  
Bus-Hold  
Family Device Type Package  
Temp. Range  
PV  
PA  
PF  
Shrink Small Outline Package (SO48-1)  
Thin Shrink Small Outline Package (SO48-2)  
Thin Very Small Outline Package (SO48-3)  
245  
16-Bit Bus Transceiver with 3-State Outputs  
16  
Double-Density with Resistors, ±24mA  
H
Bus-Hold  
–40°C to +85°C  
74  
CORPORATE HEADQUARTERS  
2975 Stender Way  
Santa Clara, CA 95054  
for SALES:  
800-345-7015 or 408-727-6116  
fax: 408-492-8674  
www.idt.com*  
*To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2.  
The IDT logo is a registered trademark of Integrated Device Technology, Inc.  
6

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