Document
IDT74ALVCH32244 3.3V CMOS 32-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS 32-BIT BUFFER/ DRIVER WITH 3-STATE OUTPUTS AND BUS-HOLD
• 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 96-ball LFBGA package
IDT74ALVCH32244
FEATURES:
DESCRIPTION:
DRIVE FEATURES:
• High Output Drivers: ±24mA • Suitable for Heavy Loads
This 32-bit buffer/driver is built using advanced dual metal CMOS technology. This high-speed, low power device offers bus/backplane interface capability with improved packing density. The device has a flowthrough organization for simplifying board layout. The three-state controls operate this device in a Quad-Nibble, Dual-Byte or single 16-bit word mode. All inputs are designed with hysteresis for improved noise margin. The ALVCH32244 has been designed with a ±24mA output driver. This driver is capable of driving a moderate to heavy load while maintaining speed performance. The ALVCH32244 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
1OE 1A1 1A2 1A3 1A4
A3
3OE A2 A1 B2 B1 1Y1 1Y2 1Y3 1Y4 3A1 3A2 3A3 3A4
H4
5OE E2 3Y1 E1 F2 F1 3Y2 3Y3 3Y4 5A1 5A2 5A3 5A4
J3
7OE J2 J1 K2 K1 5Y1 5Y2 5Y3 5Y4 7A1 7A2 7A3 7A4
T4
A5
E5
J5 J6 K5 K6
N5 N6 P5 P6
N2 N1 P2 P1
7Y1 7Y2 7Y3 7Y4
A6 B5 B6
E6 F5 F6
2OE 2A1 2A2 2A3 2A4
A4
4OE C2 C1 D2 D1 2Y1 2Y2 2Y3 2Y4 4A1 4A2 4A3 4A4
H3
6OE G2 4Y1 G1 H1 H2 4Y2 4Y3 4Y4 6A1 6A2 6A3 6A4
J4
8OE L2 6Y1 6Y2 6Y3 6Y4 8A1 8A2 8A3 8A4
T3
C5 C6 D5 D6
G5 G6 H6 H5
L5 L6 M5 M6
R5 R6 T6 T5
R2 R1 T1 T2
8Y1 8Y2 8Y3 8Y4
L1 M2
M1
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
©2000 Integrated Device Technology, Inc.
FEBRUARY 2000
DSC-4906/1
IDT74ALVCH32244 3.3V CMOS 32-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
6 1A2 1A4 2A2 2A4 3A2 3A4 4A2 4A3 5A2 5A4 6A2 6A4 7A2 7A4 8A2 8A3
5
1A1
1A3
2A1
2A3
3A1
3A3
4A1
4A4
5A1
5A3
6A1
6A3
7A1
7A3
8A1
8A4
4 2OE
GND GND
1Y3
VCC VCC
GND
GND
VCC VCC
GND GND
3OE
6OE
GND GND
5Y3
VCC VCC
6Y1
GND GND
6Y3
GND GND
7Y1
VCC VCC
7Y3
GND GND
8Y1
7OE
3
1OE
GND
2Y3
GND
3Y1
4OE
5OE
8OE
2
1Y1
2Y1
3Y3
4Y1
4Y4
5Y1
8Y4
1
1Y2 A
1Y4 B
2Y2 C
2Y4 D
3Y2 E
3Y4 F
4Y2 G
4Y3 H
5Y2 J
5Y4 K
6Y2 L
6Y4 M
7Y2 N
7Y4 P
8Y2 R
8Y3 T
LFBGA TOPVIEW
96 BALL LFBGA PACKAGE ATTRIBUTES
1.5mm Max. 1.4mm Nom. 1.3mm Min.
0.8mm
6 5 4 3 2 1 A B C D E F G H J K .