| Parameters |
| Mounting Type |
Through Hole |
| Package / Case |
20-DIP (0.300, 7.62mm) |
| Surface Mount |
NO |
| Operating Temperature |
-40°C~125°C |
| Packaging |
Tube |
| Published |
1997 |
| Series |
74HCT |
| JESD-609 Code |
e4 |
| Part Status |
Obsolete |
| Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
| Number of Terminations |
20 |
| Type |
Identity Comparator |
| Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
| Additional Feature |
CASCADABLE |
| Subcategory |
Arithmetic Circuits |
| Technology |
CMOS |
| Voltage - Supply |
4.5V~5.5V |
| Terminal Position |
DUAL |
| Peak Reflow Temperature (Cel) |
260 |
| Number of Functions |
1 |
| Supply Voltage |
5V |
| Terminal Pitch |
2.54mm |
| Time@Peak Reflow Temperature-Max (s) |
30 |
| Base Part Number |
74HCT688 |
| Output |
Active Low |
| Pin Count |
20 |
| JESD-30 Code |
R-PDIP-T20 |
| Qualification Status |
Not Qualified |
| Supply Voltage-Max (Vsup) |
5.5V |
| Power Supplies |
5V |
| Supply Voltage-Min (Vsup) |
4.5V |
| Load Capacitance |
50pF |
| Number of Bits |
8 |
| Family |
HCT |
| Current - Quiescent (Iq) |
8μA |
| Current - Output High, Low |
4mA 4mA |
| Max Propagation Delay @ V, Max CL |
34ns @ 4.5V, 50pF |
| Propagation Delay (tpd) |
51 ns |
| Output Function |
A=B |
| Height Seated (Max) |
4.2mm |
| Length |
26.73mm |
| Width |
7.62mm |
| RoHS Status |
ROHS3 Compliant |
74HCT688N,652 Overview
Tube's materials went into the packaging.Low package costs are a common attribute of the 20-DIP (0.300, 7.62mm) in the electronic industry.This electronic part is designed with 8 Bits.There is no doubt that the 74HCT Series is an excellent value for the money due to its performance-cost ratio.Located in Through Hole is this electronic part.A Active Low value is output by this electrical device.4.5V~5.5V Supply Voltage provides the device with the necessary stability.To ensure its reliability, it operates at Operating Temperature -40°C~125°C.For standard grade applications, the Identity Comparator Type is suitable.Its High/Low output current allows for maximum design flexibility.Programming terminations is done using 20.The device is equipped with 1 functions.It is possible to find its related parts based on its Base Part Number.Power comes from a supply voltage of 5V.The 20 Pin Count feature is included.HCT devices are electronic devices.Subcategory Arithmetic Circuits contains it.The power supply is a 5V power supply.Upon reaching 5.5V, the maximal supply voltage (Vsup) is reached.Supply Voltage (Vsup) should exceed 4.5V.For example, CASCADABLE has been added.
74HCT688N,652 Features
20-DIP (0.300, 7.62mm) package
8 Bits
74HCT series
20 terminations
1 Functions
20 pin count
5V power supplies
74HCT688N,652 Applications
There are a lot of NXP USA Inc. 74HCT688N,652 applications of comparators.
- Servo motor controls
- Servo Motor Controls
- Process contollenr
- “Time out" timer for consume-appication industrial controls
- Communications digltal frequency synthesizers: VHF, UHF, FM, AM, etc.
- Fixed or programmable irequency division
- Companion Appliceation Nole, ICAN-6374, "Application of the CMOS CD4059A Programmable Divide-by-N Counter in FM and Ctizens Band Transceiver Digital Tuners"