Number of Channels per Chip
: 8
Output Type
: 3-State
Logic Type
: CMOS
Supply Voltage - Max
: 5.5 V
Maximum Operating Temperature
: + 125 C
Packaging
: Reel
Package / Case
: TSSOP-20
High Level Output Current
: - 24 mA
Low Level Output Current
: 24 mA
Supply Voltage - Min
: 4.5 V
Output Level
: CMOS
Input Level
: TTL
Propagation Delay Time
: 8 ns
Logic Family
: ACT
Features: HIGH SPEED: tPD = 5.4ns (TYP.) at VCC = 5V
LOW POWER DISSIPATION: ICC = 4 µA(MAX.) at TA=25°C
COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.), VIL = 0.8V (MAX.)
50Ω TRANSMISSION LINE DRIVING CAPABILITY
SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN)
BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL
OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V
PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 245
IMPROVED LATCH-UP IMMUNITYSpecifications
| Symbol |
Parameter |
Value |
Unit |
| VCC |
Supply Voltage |
-0.5 to +7 |
V |
| VI |
DC Input Voltage |
-0.5 to VCC + 0.5 |
V |
| VO |
DC Output Voltage |
-0.5 to VCC + 0.5 |
V |
| IIK |
DC Input Diode Current |
± 20 |
mA |
| IOK |
DC Output Diode Current |
± 20 |
mA |
| IO |
DC Output Current |
± 50 |
mA |
| ICC or IGND |
DC VCC or Ground Current |
± 400 |
mA |
| Tstg |
Storage Temperature |
-65 to +150 |
°C |
| TL |
Lead Temperature (10 sec) |
300 |
°C |
DescriptionThe 74ACT245TTR is an advanced high-speed CMOS OCTAL BUS TRANSCEIVER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS tecnology.
This IC is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by DIR input. The enable input G can be used to disable the device so that the buses are effectively isolated.
The 74ACT245TTR is designed to interface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels.
All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
IT IS PROHIBITED TO APPLY A SIGNAL TO A TERMINAL WHEN IT IS IN OUTPUT MODE AND WHEN A BUS THERMINAL IS FLOATING (HIGH IMPEDANCE STATE) IT IS REQUIRED TO FIX THE INPUT LEVEL BY MEANS OF EXTERNAL PULL DOWN OR PULL UP RESISTOR.
Parameters: | Technical/Catalog Information | 74ACT245TTR |
| Vendor | STMicroelectronics |
| Category | Integrated Circuits (ICs) |
| Logic Type | Transceiver, Non-Inverting |
| Package / Case | 20-TSSOP |
| Packaging | Tape & Reel (TR) |
| Mounting Type | Surface Mount |
| Number of Bits per Element | 8 |
| Number of Elements | 1 - Single |
| Operating Temperature | -55°C ~ 125°C |
| Voltage - Supply | 4.5 V ~ 5.5 V |
| Current - Output High, Low | 24mA, 24mA |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | 74ACT245TTR
74ACT245TTR
|
74ACT245TTR Data Sheet
