1. General description
The 74LVT244A; 74LVTH244A is a high-performance BiCMOS product designed for V
CC
operation at 3.3 V.
This device is an octal buffer that is ideal for driving bus lines. The device features two
output enables (1OE, 2OE), each controlling four of the 3-state outputs.
2. Features
n Octal bus interface
n 3-state buffers
n Output capability: +64 mA and −32 mA
n TTL input and output switching levels
n Input and output interface capability to systems at 5 V supply
n Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs
n Live insertion and extraction permitted
n Power-up 3-state
n No bus current loading when output is tied to 5 V bus
n Latch-up protection
u JESD78 Class II exceeds 500 mA
n ESD protection:
u HBM JESD22-A114E exceeds 2000 V
u MM JESD22-A115-A exceeds 200 V
3. Ordering information
74LVT244A; 74LVTH244A
3.3 V octal buffer/line driver; 3-state
Rev. 04 — 3 September 2008 Product data sheet
Table 1. Ordering information
Type number Package
Temperature range Name Description Version
74LVT244AD −40 °C to +85 °C SO20 plastic small outline package; 20 leads;
body width 7.5 mm
SOT163-1
74LVTH244AD
74LVT244ADB −40 °C to +85 °C SSOP20 plastic shrink small outline package; 20 leads;
body width 5.3 mm
SOT339-1
74LVTH244ADB
74LVT244APW −40 °C to +85 °C TSSOP20 plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
SOT360-1
74LVTH244APW
74LVT244ABQ −40 °Cto+85°C DHVQFN20 plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads;
20 terminals; body 2.5 × 4.5 × 0.85 mm
SOT764-1
74LVTH244ABQ
