HEF40244BT ,Octal buffers with 3-state outputsfeatures output stages with high currentoutput capability suitable for driving highly capacitiveloa ..
HEF40245BD ,Octal bus transceiver with 3-state outputs
HEF40245BP ,Octal bus transceiver with 3-state outputs
HEF40245BP ,Octal bus transceiver with 3-state outputs
HEF4024BD ,7-stage binary counterINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC04 LOCMOS HE40 ..
HEF4024BP ,7-stage binary counterINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC04 LOCMOS HE40 ..
HM6116P-3 , 2048-word X 8bit High Speed CMOS Static RAM
HM6116P-3 , 2048-word X 8bit High Speed CMOS Static RAM
HM6116P-3 , 2048-word X 8bit High Speed CMOS Static RAM
HM6116P-3 , 2048-word X 8bit High Speed CMOS Static RAM
HM6116P-3 , 2048-word X 8bit High Speed CMOS Static RAM
HM6116P-3 , 2048-word X 8bit High Speed CMOS Static RAM
HEF40244BD-HEF40244BP-HEF40244BT
Octal buffers with 3-state outputs
Philips Semiconductors Product specification
Octal buffers with 3-state outputs HEF40244B
buffers
DESCRIPTIONThe HEF40244B is an octal non-inverting buffer with
3-state outputs. It features output stages with high current
output capability suitable for driving highly capacitive
loads.
The 3-state outputs are controlled by the output enable
inputsEOA and EOB. A HIGH on EO causes the outputs to
assume a high impedance OFF-state. The device also
features hysteresis on all inputs to improve noise
immunity.
Schmitt-trigger action in the inputs makes the circuit highly
tolerant to slower input rise and fall times.
The HEF40244B is pin and functionally compatible with
the TTL ‘244’ device.
PINNING
FAMILY DATA, IDD LIMITS category buffersSee Family Specifications
HEF40244BP(N): 20-lead DIL; plastic (SOT146-1)
HEF40244BD(F): 20-lead DIL; ceramic (cerdip) (SOT152)
HEF40244BT(D): 20-lead SO; plastic (SOT163-1) ): Package Designator North America
IA1 to IA4 inputs
IB1 to IB4 inputs
OA1 to OA4 bus outputs
OB1 to OB4 bus outputs
EOA, EOB output enable inputs (active LOW)
Philips Semiconductors Product specification
Octal buffers with 3-state outputs HEF40244B
buffers
TRUTH TABLE
Notes H = HIGH state (the more positive voltage)
L = LOW state (the less positive voltage)= state is immaterial
Z = high impedance off state
RATINGSLimiting values in accordance with the Absolute Maximum System (IEC 134).
See Family Specifications, except for:
DC CHARACTERISTICSVSS =0 V
D.C. current into any input ±II max. 10 mA
D.C. source or sink current into any output ±IO max. 25 mA
D.C. current into the supply terminals ±I max. 100 mA
Philips Semiconductors Product specification
Octal buffers with 3-state outputs HEF40244B
buffers
AC CHARACTERISTICSVSS= 0 V; Tamb =25 °C; input transition times≤ 20 ns
Philips Semiconductors Product specification
Octal buffers with 3-state outputs HEF40244B
buffers
AC CHARACTERISTICSVSS= 0 V; Tamb =25 °C;CL = 50 pF; input transition times≤ 20 ns
Philips Semiconductors Product specification
Octal buffers with 3-state outputs HEF40244B
buffers
