
HMC974LC3C Data Sheet
Rev. C | Page 6 of 12
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
1RT
2WIN
3
WIT
4RB
12 ORB
11 WOUTB
10 URB
9 V
CCO
5V
CCI
6
7LE
8V
EE
16 V
CCI
15 RTN
14 V
EE
13 V
CCO
LE
HMC974LC3C
TOP VIEW
(Not to Scale)
V
EE
PACKAGE
BASE
14863-003
NOTES
1. EXPOSED PAD. THE EXPOSED PAD MUST
BE CONNECTED TO V
EE
.
Figure 3. Pin Configuration
Table 3. Pin Function Descriptions
Pin No. Mnemonic Description
1 RT Termination Resistor for Reference Top.
2 WIN Analog Input Window.
3 WIT Common Mode Window for Termination Resistors.
4 RB Termination Resistor Return for Reference Bottom.
5, 16 V
CCI
Positive Supply Voltage Input Stage.
6
LE
Inverting Latch Enable Input.
7 LE Noninverting Latch Enable Input.
EE
CCO
Positive Supply Voltage Output Stage.
10 URB Underange Output. URB is asserted low when the analog input voltage is below the RB pin voltage.
11 WOUTB Window Output. WOUTB is asserted low when the analog input voltage is between the RB pin voltage and the
RT pin voltage.
12 ORB Overrange output. ORB is asserted low when the analog input voltage range is above the RT pin voltage.
15 RTN ESD Protection Return.
Exposed Pad. The exposed pad must be connected to V
EE