Anterwell Technology Ltd.
Anterwell Technology Ltd.
Large Original stock of IC Electronics Components, Transistors, Diodes etc.
High Quality, Reasonable Price, Fast Delivery.
Anterwell Technology Ltd.
Large Original stock of IC Electronics Components, Transistors, Diodes etc.
High Quality, Reasonable Price, Fast Delivery.
Product Details:
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| Feature 1: | Octal Bidirectional Bus Interface | Feature 2: | Non-inverting 3-state Outputs |
|---|---|---|---|
| Feature 3: | Multiple Package Options | Feature 4: | Complies With JEDEC Standard No. 7A |
| ESD Protection 1: | HBM EIA/JESD22-A114-B Exceeds 2000 V | ESD Protection 2: | MM EIA/JESD22-A115-A Exceeds 200 V |
| High Light: | integrated circuit ic,integrated circuit components |
||
1. General description
The 74HC245; 74HCT245 is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL).
The 74HC245; 74HCT245 is an octal transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. The 74HC245; 74HCT245 features an output enable input (OE) for easy cascading and a send/receive input (DIR) for direction control. OE controls the outputs so that the buses are effectively isolated.
The 74HC245; 74HCT245 is similar to the 74HC640; 74HCT640 but has true (non-inverting) outputs.
2. Features
■ Octal bidirectional bus interface
■ Non-inverting 3-state outputs
■ Multiple package options
■ Complies with JEDEC standard no. 7A
■ ESD protection:
◆ HBM EIA/JESD22-A114-B exceeds 2000 V
◆ MM EIA/JESD22-A115-A exceeds 200 V
■ Specified from −40 °C to +85 °C and from −40 °C to +125 °C
3. Quick reference data
GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns
| Symbol | Parameter | Conditions | Min | Typ | Max | Unit |
| Type 74HC245 | ||||||
| tPHL, tPLH |
propagation delay An to Bn or Bn to An |
CL = 15 pF; VCC =5V |
- | 7 | - | ns |
| CI | input capacitance | - | 3.5 | - | pF | |
| CI/O | input/output capacitance | - | 10 | - | pF | |
| CPD |
power dissipation capacitance per transceiver |
VI = GND to VCC | [1] - | 30 | - | pF |
| Type 74HC245 | ||||||
| tPHL, tPLH |
propagation delay An to Bn or Bn to An |
CL = 15 pF; VCC =5V |
- | 10 | - | ns |
| CI | input capacitance | - | 3.5 | - | pF | |
| CI/O | input/output capacitance | - | 10 | - | pF | |
| CPD |
power dissipation capacitance per transceiver |
VI = GND to VCC − 1.5 V |
[1] - | 30 | - | pF |
[1] CPD is used to determine the dynamic power dissipation (PD in µW):
PD = CPD × VCC2 × fi × N + ∑ (CL × VCC2 × fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
∑ (CL × VCC2 × fo) = sum of outputs.
4. Functional diagram
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