TC7MB3244FT Datasheet, PDF (1/7 Pages) Toshiba Semiconductor – Octal Bus Switch

TC7MB3244FT/FK
Toshiba CMOS Digital Integrated Circuit Silicon Monolithic
TC7MB3244FT, TC7MB3244FK
Octal Bus Switch
The TC7MB3244 provides eight bits of high-speed
TTL-compatible bus switching in a standard ’244 device pinout.
The low on resistance of the switch allows connections to be made
with minimal propagation delay.
The device is organized as two 4-bit low-impedance switches
with separate output-enable ( OE ) inputs. When OE is low, the
switch is on and data can flow from port A to port B, or vice versa.
When OE is high, the switch is open and a high-impedance state
exists between the two ports.
All inputs are equipped with protection circuits against static
discharge.
TC7MB3244FT
TC7MB3244FK
Features
• Operating voltage: V_CC = 4.5 to 5.5 V
• High speed: t_pd = 0.25 ns (max)
• Low on resistance: R_ON = 5 Ω (typ.)
• ESD performance: Machine model ≥ ±200 V
Human body model ≥ ±2000 V
• Compatible with TTL outputs (control inputs)
• Package: TSSOP20,VSSOP20 (US20)
• Pin compatible with the 74xx244 type.
Functionally equivalent to (FST/CBT) 3244.
Pin Assignment (top view)
Weight
TSSOP20-P-0044-0.65A
VSSOP20-P-0030-0.50
: 0.08 g (typ.)
: 0.03 g (typ.)
1OE 1
1A1 2
2B4 3
1A2 4
2B3 5
1A3 6
2B2 7
1A4 8
2B1 9
GND 10
(top view)
20 V_CC
19 2OE
18 1B1
17 2A4
16 1B2
15 2A3
14 1B3
13 2A2
12 1B4
11 2A1
1
2008-09-01