74F835 Datasheet, PDF (1/6 Pages) NXP Semiconductors – 8-bit shift register with 2:1 mux-in, latched B inputs, and serial out

Philips Semiconductors
8-bit shift register with 2:1 mux-in,
latched “B” inputs, and serial out
Product specification
74F835
FEATURES
• Specifically designed for Video applications
• Combines the 74F373, two 74F157s, and the 74F166 functions in
one package
• Interleaved loading with 2:1 mux
• Dual 8-bit parallel inputs
• Transparent latch on all “B” inputs
• Guaranteed serial shift frequency to 100MHz
• Expandable to 16-bits or more with serial input
DESCRIPTION
The 74F835 is a high speed 8-bit parallel/serial-in, serial-out shift
register whose parallel inputs have been connected to an internal
octal two-to-one multiplexer with all the “B” inputs connected to an
octal latch.
This 24-pin part is specifically designed for video bit shifting, where
interleaved loading is desired and parts count is critical. It is useful in
any design where a 2:1 mux input with a transparent latch is
needed.
TYPE
74F835
TYPICAL f_MAX
150MHz
TYPICAL
SUPPLY CURRENT
(TOTAL)
45mA
PIN CONFIGURATION
PE ¹
CP ²
D4A ³
D4B ⁴
D5A ⁵
D5B ⁶
D6A ⁷
D6B ⁸
D7A ⁹
D7B ¹⁰
Q7 ¹¹
GND 12
24 V_CC
23 _D3B
22 _D3A
21 _D2B
20 _D2A
19 _D1B
18 _D1A
17 _D0B
16 _D0A
15 _DS
14 _SA/B
13 _LE
SF01355
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL RANGE
V_CC = 5V ±10%,
T_amb = 0°C to +70°C
24-pin plastic
Slim DIP (300 mil)
N74F835N
24-pin plastic SOL
N74F835D
PACKAGE
DRAWING
NUMBER
SOT222-1
SOT137-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F (U.L.) HIGH/LOW
D0A – D7A
Parallel data inputs
1.0/1.0
D0B – D7B
Latched Parallel data inputs
1.0/1.0
DS
Serial data input
1.0/1.0
CP
Shift Register Clock input (active rising edge)
1.0/1.0
SA/B
Mux Select
1.0/1.0
LE
Latch Enable input (for B inputs)
1.0/1.0
PE
Parallel Enable input
1.0/1.0
Q7
Output
50/33
NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state.
LOAD VALUE HIGH/LOW
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
1.0mA/20mA
1990 Jan 08
1
853–0615 99490