adm6993 Infineon Technologies Corporation, adm6993 Datasheet - Page 11

• Manufacturer Part Number: adm6993
• Description: Adm6993/x Hdlc To Fast Ethernet Converter
• Manufacturer: Infineon Technologies Corporation

2.2
Standardized abbreviations:
Table 2
Abbreviations
I
O
I/O
AI
AO
AI/O
PWR
GND
MCL
MCH
NU
NC
Table 3
Abbreviations
Z
PU1
PD1
PD2
TS
OD
OC
PP
OD/PP
ST
TTL
Data Sheet
Pin Type and Buffer Type Abbreviations
ADM6993/XAbbreviations for Pin Type
Abbreviations for Buffer Type
Description
Standard input-only pin. Digital levels.
Output. Digital levels.
I/O is a bidirectional input/output signal.
Input. Analog levels.
Output. Analog levels.
Input or Output. Analog levels.
Power
Ground
Must be connected to Low (JEDEC Standard)
Must be connected to High (JEDEC Standard)
Not Usable (JEDEC Standard)
Not Connected (JEDEC Standard)
Description
High impedance
Pull up, 10 k Ω
Pull down, 10 k Ω
Pull down, 20 k Ω
Tristate capability: The corresponding pin has 3 operational states: Low, high and high-
impedance.
Open Drain. The corresponding pin has 2 operational states, active low and tristate, and
allows multiple devices to share as a wire-OR. An external pull-up is required to sustain the
inactive state until another agent drives it, and must be provided by the central resource.
Open Collector
Push-Pull. The corresponding pin has 2 operational states: Active-low and active-high
(identical to output with no type attribute).
Open-Drain or Push-Pull. The corresponding pin can be configured either as an output with
the OD attribute or as an output with the PP attribute.
Schmitt-Trigger characteristics
TTL characteristics
11
Interface Description
Rev 1.11, 2005-11-28
ADM6993/X