HCF4532BM1 ,8-BIT PRIORITY ENCODERHCF4532B8-BIT PRIORITY ENCODER ■ CONVERTS FROM 1 TO 8 TO INPUTS BINARY■ PROVIDES CASCADING FEATURE ..
HCF4536BEY ,PROGAMMABLE TIMERABSOLUTE MAXIMUM RATINGS Symbol Parameter Value UnitV Supply Voltage-0.5 to +22 VDDV DC Input ..
HCF4536BEY ,PROGAMMABLE TIMERHCF4536BPROGRAMMABLE TIMER0 ■ 24 FLIP-FLOP STAGES - COUNTS FROM 2 24TO 2■ LAST 16 STAGES SELECTABL ..
HCF4538 ,DUAL MONOSTABLE MULTIVIBRATORHCF4538BDUAL MONOSTABLE MULTIVIBRATOR ■ RETRIGGERABLE/RESETTABLE CAPABILITY■ TRIGGER AND RESET PRO ..
HCF4538B ,DUAL MONOSTABLE MULTIVIBRATORHCC4538BHCF4538BDUAL MONOSTABLE MULTIVIBRATOR. RETRIGGERABLE/RESETTABLECAPABILITY. TRIGGER AND RESE ..
HCF4538BM1 ,DUAL MONOSTABLE MULTIVIBRATORHCF4538BDUAL MONOSTABLE MULTIVIBRATOR ■ RETRIGGERABLE/RESETTABLE CAPABILITY■ TRIGGER AND RESET PRO ..
HD64F3334YF16 , Old Company Name in Catalogs and Other Documents
HD64F3334YF16 , Old Company Name in Catalogs and Other Documents
HD64F3334YFLH16 , Hitachi Single Chip Microcomputer
HD64F3334YFLH16 , Hitachi Single Chip Microcomputer
HD64F3334YTF16 , Old Company Name in Catalogs and Other Documents
HD64F3337YFLH16 , Hitachi Single Chip Microcomputer
HCF4532BM1
8-BIT PRIORITY ENCODER
1/11September 2002 CONVERTS FROM 1 TO 8 TO INPUTS
BINARY PROVIDES CASCADING FEATURE TO
HANDLE ANY NUMBER OF INPUTS GROUP SELECT INDICATES ONE OR
MORE PRIORITY INPUTS QUIESCENT CURRENT SPECIFIED UP TO
20V STANDARDIZED SYMMETRICAL OUTPUT
CHARACTERISTICS 5V, 10V AND 15V PARAMETRIC RATINGS INPUT LEAKAGE CURRENT
II = 100nA (MAX) AT VDD = 18V TA = 25°C 100% TESTED FOR QUIESCENT CURRENT MEETS ALL REQUIREMENTS OF JEDEC
JESD13B "STANDARD SPECIFICATIONS
FOR DESCRIPTION OF B SERIES CMOS
DEVICES"
DESCRIPTIONHCF4532B is a monolithic integrated circuit
fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages.
HCF4532B consists of a combinational logic that
encodes the highest priority input (D7-D0) to a
3-bit binary code. The eight inputs, D7 through D0,
each have an assigned priority. D7 is the highest
priority and D0 is the lowest. The priority encoder
is inhibited when the chip enable input EI is low.
When EI is high, the binary representation of the
highest priority input appears on output lines
Q2-Q0, and the group select line GS is high to
indicate that priority inputs are present. The
enable out (EO) is high when no priority inputs are
present. If any input is high, EO is low and all
cascaded lower order stages are disabled.
HCF4532B8-BIT PRIORITY ENCODER
PIN CONNECTION
ORDER CODES
HCF4532B2/11
IINPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
FUNCTIONAL DIAGRAM
TRUTH TABLE X : Don’t Care
HCF4532B3/11
LOGIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
All voltage values are referred to VSS pin voltage.
HCF4532B4/11
RECOMMENDED OPERATING CONDITIONS
DC SPECIFICATIONS The Noise Margin for both "1" and "0" level is: 1V min. with VDD=5V, 2V min. with VDD=10V, 2.5V min. with VDD=15V
HCF4532B5/11
DYNAMIC ELECTRICAL CHARACTERISTICS (T amb = 25°C, CL = 50pF, RL = 200KΩ, tr = tf = 20 ns)
(*) Typical temperature coefficient for all VDD value is 0.3 %/°C.
TYPICAL APPLICATIONS16-LEVEL PRIORITY ENCODER
HCF4532B6/11
0 TO 9 KEYBOARD ENCODER
TRUTH TABLE X : Don’t Care
