| 制造商 | 部件名 | 数据表 | 功能描述 |
 Texas Instruments |
SN54190
|
512Kb / 14P |
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
|
 Hitachi Semiconductor |
HD74LS668
|
103Kb / 7P |
Synchronous Up/Down Decade Counters
|
 Texas Instruments |
SN54ALS190
|
140Kb / 8P |
SYNCHRONOUS 4-BIT UP/DOWN DECADE AND BINARY COUNTERS
|
 National Semiconductor ... |
DM54LS190
|
174Kb / 8P |
Synchronous 4-Bit Up/Down Counters with Mode Control
|
|
MM54HC192
|
180Kb / 8P |
Synchronous Decade Up/Down Counters Synchronous Binary Up/Down Counters
|
 Texas Instruments |
CD54HC190
|
614Kb / 26P |
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
|
 Aeroflex Circuit Techno... |
UT54ACS191
|
258Kb / 10P |
Synchronous 4-Bit Up-Down Binary Counters
|
 Texas Instruments |
SN54190
|
1Mb / 16P |
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
|
|
CD54HC190
|
1Mb / 31P |
SYNCHORONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
|
 National Semiconductor ... |
MM54HCT193
|
117Kb / 8P |
Synchronous Binary Up/Down Counters
January 1988 |