Ultra37000 CPLD Family
Switching Characteristics Over the Operating Range (continued)[12]
| Parameter |
|
|
|
| Description |
|
|
|
|
|
|
|
| Unit |
Product Term Clocking Parameters |
|
|
|
|
|
|
|
|
| ||||||
tCOPT[13, 14, 15] | Product Term Clock or Latch Enable (PTCLK) to Output |
|
|
|
|
|
|
|
| ns | |||||
tSPT |
|
|
| ns | |||||||||||
tHPT | Register or Latch Data Hold Time |
|
|
|
|
|
|
|
| ns | |||||
tISPT[13] | ns | ||||||||||||||
|
| Latch Enable (PTCLK) |
|
|
|
|
|
|
|
|
| ||||
tIHPT | Buried Register Used as an Input Register or Latch Data Hold Time |
|
|
|
| ns | |||||||||
tCO2PT[13, 14, 15] | Product Term Clock or Latch Enable (PTCLK) to Output Delay (Through Logic Array) | ns | |||||||||||||
Pipelined Mode Parameters |
|
|
|
|
|
|
|
|
|
| |||||
tICS[13] | Input Register Synchronous Clock (CLK0, CLK1, CLK2, or CLK3) to Output Register Synchronous | ns | |||||||||||||
|
| Clock (CLK0, CLK1, CLK2, or CLK3) |
|
|
|
|
|
|
|
|
| ||||
Operating Frequency | Parameters |
|
|
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
|
| |||||||||
f | MAX1 | Maximum Frequency with Internal Feedback (Lesser of 1/t , 1/(t |
| + t ), or 1/t | )[5] | MHz | |||||||||
|
|
|
|
| SCS |
| S | H |
| CO |
| ||||
fMAX2 | Maximum Frequency Data Path in Output Registered/Latched Mode (Lesser of 1/(tWL + tWH), | MHz | |||||||||||||
|
| 1/(t | S | + t | ), or 1/t | )[5] |
|
|
|
|
|
|
|
|
|
|
|
|
| H | CO |
|
|
|
|
|
|
|
|
| |
f | MAX3 | Maximum Frequency with External Feedback (Lesser of 1/(t | CO | + t | S | ) or 1/(t | WL | + t | )[5] | MHz | |||||
|
|
|
|
|
|
|
|
|
| WH |
| ||||
fMAX4 | Maximum Frequency in Pipelined Mode (Lesser of 1/(tCO + tIS), 1/tICS, 1/(tWL + tWH), 1/(tIS + tIH), | MHz | |||||||||||||
|
| or 1/tSCS)[5] |
|
|
|
|
|
|
|
|
|
| |||
Reset/Preset Parameters |
|
|
|
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
|
| ||||
t | RW | Asynchronous Reset Width[5] |
|
|
|
|
|
|
|
| ns | ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
t | [13] | Asynchronous Reset Recovery Time[5] |
|
|
|
|
|
|
|
| ns | ||||
| RR |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
tRO[13, 14, 15] | Asynchronous Reset to Output |
|
|
|
|
|
|
|
| ns | |||||
tPW | Asynchronous Preset Width[5] |
|
|
|
|
|
|
|
| ns | |||||
tPR[13] | Asynchronous Preset Recovery Time[5] |
|
|
|
|
|
|
|
| ns | |||||
tPO[13, 14, 15] | Asynchronous Preset to Output |
|
|
|
|
|
|
|
| ns | |||||
User Option Parameters |
|
|
|
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
| |||||
tLP | Low Power Adder |
|
|
|
|
|
|
|
| ns | |||||
tSLEW | Slow Output Slew Rate Adder |
|
|
|
|
|
|
|
| ns | |||||
t3.3IO | 3.3V I/O Mode Timing Adder[5] |
|
|
|
|
|
|
|
| ns | |||||
| JTAG Timing Parameters |
|
|
|
|
|
|
|
|
|
|
| |||
t | S JTAG |
|
|
|
|
|
|
|
| ns | |||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
tH JTAG | Hold Time on TDI and TMS[5] |
|
|
|
|
|
|
|
| ns | |||||
tCO JTAG | Falling Edge of TCK to TDO[5] |
|
|
|
|
|
|
|
| ns | |||||
f | JTAG | Maximum JTAG Tap Controller Frequency[5] |
|
|
|
|
|
|
|
| ns | ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Document #: | Page 18 of 64 |
[+] Feedback