| Manufacturer | Part # | Datasheet | Description |

National Instruments Co...
|
NI660X |
356Kb/10P |
32-Bit Counter/Timers |
| NI6624 |
343Kb/4P |
Industrial, Channel-Channel Isolated,32-Bit Counter/Timers |

Mitsubishi Electric Sem...
|
M58479P |
235Kb/4P |
CMOS COUNTER/TIMERS |

Dallas Semiconductor
|
DS1371 |
498Kb/15P |
I2C, 32-Bit Binary Counter |

Maxim Integrated Produc...
|
DS1672 |
197Kb/15P |
I2C 32-Bit Binary Counter RTC Rev 9/11 |
| DS1672 |
514Kb/15P |
I2C 32-Bit Binary Counter RTC REV: 031406 |

Keysight Technologies
|
53220A |
1Mb/24P |
RF/Universal Frequency Counter/Timers |
| 53210A |
1Mb/24P |
RF/Universal Frequency Counter/Timers |
| 53230A |
1Mb/24P |
RF/Universal Frequency Counter/Timers |

LSI Computer Systems
|
LS7366R |
716Kb/17P |
32-BIT QUADRATURE COUNTER WITH SERIAL INTERFACE |
| LS7366R |
91Kb/13P |
32-BIT QUADRATURE COUNTER WITH SERIAL INTERFACE |
| LS7366 |
83Kb/10P |
32 BIT QUADRATURE COUNTER WITH SERIAL INTERFACE |

Maxim Integrated Produc...
|
DS1371 |
966Kb/14P |
2-Wire, 32-Bit Binary Counter Watchdog Clock |
| DS1372 |
167Kb/12P |
I2C, 32-Bit, Binary Counter Clock with 64-Bit ID Rev 0; 7/07 |

LSI Computer Systems
|
LS7766 |
226Kb/14P |
32-BIT SINGLE- AXIS/DUAL-AXIS QUADRATURE COUNTER |

Zilog, Inc.
|
Z08611 |
636Kb/17P |
Full-duplex UART and two programmable 8-bit counter/timers, each with a 6-bit |

NXP Semiconductors
|
LPC55S1X |
3Mb/132P |
32-bit Arm Cortex짰-M33, TrustZone, PRINCE, CASPER, 96 KB SRAM; 256 KB flash, USB HS, Flexcomm Interface, CAN FD, 32-bit counter/ timers, SCTimer/PWM, PLU, 16-bit 2.0 Rev. 1.6-6 August 2021 |

Fairchild Semiconductor
|
MM74C90 |
67Kb/7P |
4-Bit Decade Counter ??4-Bit Binary Counter |

NXP Semiconductors
|
LPC51U68 |
2Mb/93P |
32-bit ARM Cortex-M0+ MCU; 96 KB SRAM; 256 KB flash, Crystal-less USB operation, Flexcomm Interface, 32-bit counter/ timers, SCTimer/PWM, 12-bit 5.0 Msamples/sec ADC, Temperature sensor Rev. 1.3-18 May 2018 |

Motorola, Inc
|
SN54LS290 |
205Kb/7P |
DECADE COUNTER; 4-BIT BINARY COUNTER |