Mounting Style
: SMD/SMT
Package / Case
: SOIC-16
Packaging
: Reel
Supply Voltage - Max
: 5.25 V
Supply Voltage - Min
: 4.75 V
Maximum Operating Temperature
: + 70 C
Product
: Priority Encoder
Number of Lines (Input / Output)
: 8 / 3
Logic Family
: LS
Propagation Delay Time
: 13 ns
Number of Bits
: 16
DescriptionThe SN74LS148DR feature priority decoding of the inputs to ensure that only the highest-order data line is encoded. The '147 and 'LS147 devices encode nine data lines to four-line (8-4-2-1) BCD. The implied decimal zero condition requires no input condition, as zero is encoded when all nine data lines are at a high logic level.
The absolute maximum ratings of the SN74LS148DR are: (1)Supply voltage, VCC: 7 V; (2)Input voltage, VI: 5.5 V; (3)Inter-emitter voltage: 5.5 V; (4)Package thermal impedance JA: D package 73°C/W, N package 67°C/W, NS package 64°C/W; (5)Storage temperature range, Tstg: 65°C to 150°C.
The following is about the electrical characteristics of SN74LS148DR2: (1)High-level input voltage: 2V min; (2)Low-level input voltage: 0.7V max; (3)Input clamp voltage: -1.5V max at VCC = MIN, II = -18 mA; (4)High-level output voltage: 2.5V min and 3.4V typical at VCC = MIN, VIL = 0.8 V, VIH = 2 V, IOH = -400 A; (5)Low-level output voltage: 0.25V typical and 0.4V max at VCC = MIN, VIH= 2 V, VIL=VIL max, IOL = 4 mA
Parameters: | Technical/Catalog Information | SN74LS148DR |
| Vendor | Texas Instruments |
| Category | Integrated Circuits (ICs) |
| Circuit | 1 x 8:3 |
| Independent Circuits | 1 |
| Mounting Type | Surface Mount |
| Current - Output High, Low | 400A, 8mA |
| Package / Case | 16-SOIC (3.9mm Width) |
| Packaging | Tape & Reel (TR) |
| Type | Priority Encoder |
| Voltage Supply Source | Single Supply |
| Operating Temperature | 0°C ~ 70°C |
| Voltage - Supply | 4.75 V ~ 5.25 V |
| Drawing Number | 296; 4040047-4; D; 16 |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | SN74LS148DR
SN74LS148DR
|
SN74LS148DR Data Sheet
