Image 74HC244DB,118
型号: 74HC244DB,118
厂商: NXP Semiconductors NXP Semiconductors
标准:
分类: 半导体集成电路 - IC
描述: buffers & line drivers octal buffer 3-state
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74HC244DB,118的详细信息

Manufacturer: NXP
Product Category: Buffers & Line Drivers
RoHS: Yes
Brand: NXP Semiconductors
Number of Input Lines: 8
Number of Output Lines: 8
Polarity: Non-Inverting
Supply Voltage - Max: 6 V
Supply Voltage - Min: 2 V
Maximum Operating Temperature: + 125 C
Mounting Style: SMD/SMT
Package / Case: SSOP-20
Packaging: Reel
High Level Output Current: - 7.8 mA
Logic Family: HC
Logic Type: CMOS
Low Level Output Current: 7.8 mA
Maximum Power Dissipation: 500 mW
Minimum Operating Temperature: - 40 C
Number of Channels per Chip: 8
Output Type: 3-State
Propagation Delay Time: 110 ns at 2 V, 22 ns at 4.5 V, 19 ns at 6 V
Factory Pack Quantity: 1000
Part # Aliases: 74HC244DB-T
74HC244; 74HCT244  
Octal buffer/line driver; 3-state  
Rev. 4 — 24 September 2012  
Product data sheet  
1. General description  
The 74HC244; 74HCT244 is an 8-bit buffer/line driver with 3-state outputs. The device  
can be used as two 4-bit buffers or one 8-bit buffer. The device features two output  
enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE  
causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes  
that enable the use of current limiting resistors to interface inputs to voltages in excess of  
VCC  
.
2. Features and benefits  
Input levels:  
For 74HC244: CMOS level  
For 74HCT244: TTL level  
Octal bus interface  
Non-inverting 3-state outputs  
Complies with JEDEC standard no. 7 A  
ESD protection:  
HBM JESD22-A114F exceeds 2000 V  
MM JESD22-A115-A exceeds 200 V  
Multiple package options  
Specified from 40 C to +85 C and 40 C to +125 C  
3. Ordering information  
Table 1.  
Ordering information  
Type number  
Package  
Temperature range Name  
Description  
Version  
74HC244N  
40 C to +125 C  
40 C to +125 C  
40 C to +125 C  
40 C to +125 C  
40 C to +125 C  
DIP20  
plastic dual in-line package; 20 leads (300 mil)  
SOT146-1  
74HCT244N  
74HC244D  
SO20  
plastic small outline package; 20 leads;  
body width 7.5 mm  
SOT163-1  
SOT339-1  
74HCT244D  
74HC244DB  
74HCT244DB  
74HC244PW  
74HCT244PW  
74HC244BQ  
74HCT244BQ  
SSOP20  
TSSOP20  
plastic shrink small outline package; 20 leads;  
body width 5.3 mm  
plastic thin shrink small outline package; 20 leads; SOT360-1  
body width 4.4 mm  
DHVQFN20 plastic dual-in-line compatible thermal enhanced  
very thin quad flat package; no leads; 20 terminals;  
body 2.5 4.5 0.85 mm  
SOT764-1