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74AC191

Features: ICC reduced by 50%High speed-133 MHz typical count frequency Synchronous counting Asynchronous parallel load Cascadable Outputs source/sink 24 mAPinoutSpecifications Supply Voltage (VCC) −0.5V to +7.0V DC Input Diode Current (IIK) VI = −0.5V −20 mA VI ...

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SeekIC No. : 004248905 Detail

74AC191: Features: ICC reduced by 50%High speed-133 MHz typical count frequency Synchronous counting Asynchronous parallel load Cascadable Outputs source/sink 24 mAPinoutSpecifications Supply Voltage (V...

74AC191 Data Sheet

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Part Number:
74AC191
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/5/19

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Product Details

Description



Features:

ICC reduced by 50%
High speed-133 MHz typical count frequency
Synchronous counting
Asynchronous parallel load
Cascadable
Outputs source/sink 24 mA




Pinout

Connection Diagram




Specifications

Supply Voltage (VCC) −0.5V to +7.0V
DC Input Diode Current (IIK)
VI = −0.5V −20 mA
VI = VCC + 0.5V +20 mA
DC Input Voltage (VI) −0.5V to VCC + 0.5V
DC Output Diode Current (IOK)
VO = −0.5V −20 mA
VO = VCC + 0.5V +20 mA
DC Output Voltage (VO) −0.5V to VCC + 0.5V
DC Output Source
or Sink Current (IO) ± 50 mA
DC VCC or Ground Current
per Output Pin (ICC or IGND) ± 50 mA
Storage Temperature (TSTG) −65 to +150
Junction Temperature (TJ)
PDIP 140




Product Product status Eco Status Pricing* Package type Leads Packing method Package Drawing Package Marking Convention**
74AC191MTC Full Production RoHS Compliant $0.245 TSSOP 16 RAIL Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: AC191
74AC191MTCX Full Production RoHS Compliant $0.61 TSSOP 16 TAPE REEL Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: AC191
74AC191PC Full Production RoHS Compliant $0.67 DIP 16 RAIL Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&4 (4-Digit Date Code)
&K Line 2: 74AC191PC
74AC191SC Full Production RoHS Compliant $0.54 SOIC 16 RAIL Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: 74AC191
74AC191SCX Full Production RoHS Compliant $0.52 SOIC 16 TAPE REEL Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: 74AC191
74AC191SJ Full Production RoHS Compliant $0.72 SOP 16 RAIL Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: 74AC191
74AC191SJX Full Production RoHS Compliant $0.80 SOP 16 TAPE REEL Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: 74AC191
* Fairchild 1,000 piece Budgetary Pricing
** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product 74AC191 is available. Click here for more information .





Description

The 74AC191 is a reversible modulo 16 binary counter. It features synchronous counting and asynchronous presetting.The preset feature allows the AC191 to be used in programmable dividers. The Count Enable input, the Terminal Count output and the Ripple Clock output make possible a variety of methods of implementing multistage counters. In the counting modes, state changes are initiated by the rising edge of the clock.



The 74AC191 is a reversible modulo 16 binary counter. It features synchronous counting and asynchronous presetting. The preset feature allows the AC191 to be used in programmable dividers. The Count Enable input, the Terminal Count output and the Ripple Clock output make possible a variety of methods of implementing multistage counters. In the counting modes, state changes are initiated by the rising edge of the clock.






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