IDT5V9885B Integrated Device Technology, Inc., IDT5V9885B Datasheet - Page 25

• Manufacturer Part Number: IDT5V9885B
• Description: 3.3V EEPROM PROGRAMMABLE CLOCK GENERATOR
• Manufacturer: Integrated Device Technology, Inc.

NOTE:
1. Guaranteed by design.
JTAG
AC ELECTRICAL CHARACTERISTICS
of an interrupt of some sort such as a power down of the part in the middle of a save or restore operation, the contents to or from the EEPROM will be partially
loaded, and a CRC error will be generated. The CERR bit (0x81) will be asserted to indicate that an error has occurred. The LOSS_LOCK signal will also
be asserted.
will not function properly if the device is in shutdown mode (SHUTDOWN pin asserted). The IDT5V9885B will be ready to accept a programming instruction
once it acknowledges its 7-bit I
NOTE:
t1 = t
t2 = t
t3 = t
t4 = t
t5 = t
t6 = t
IDT5V9885B
3.3V EEPROM PROGRAMMABLE CLOCK GENERATOR
Symbol
t
t
t
t
TCLKHIGH
TCLKLOW
TCLKRISE
TCLKFALL
In order for the save and restore instructions to function properly, the IDT5V9885B must not be in shutdown mode (SHUTDOWN pin asserted). In the event
On power-up of the IDT5V9885B, an automatic restore is performed to load the EEPROM contents into the internal programming registers. The auto-restore
t
t
t
TCLK
TCLKLOW
RSR
TCLKHIGH
TCLKFALL
RST
TCLKRISE
RST
RSR
(reset pulse width)
(reset recovery)
Parameter
JTAG Clock Input Period
JTAG Clock HIGH
JTAG Clock Low
JTAG Clock Rise Time
JTAG Clock Fall Time
JTAG Reset
JTAG Reset Recovery
TCLK
TDI/TMS
TDO
TRST
2
C address.
t3
t5
Min.
100
40
40
—
—
50
50
t1
t4
t
t6
Max.
DS
5
5
—
—
—
—
—
t
(1)
(1)
TCLK
t
DH
Standard JTAG Timing
Units
t2
ns
ns
ns
ns
ns
ns
ns
25
SYSTEM INTERFACE PARAMETERS
NOTE:
1. 50pF loading on external output signals.
Symbol
t
t
DOH
t
t
DO
DS
DH
Parameter
Data Output
Data Output Hold
Data Input, t
Data Input, t
(1)
RISE
FALL
t
DO
= 3ns
= 3ns
(1)
INDUSTRIAL TEMPERATURE RANGE
TDO
Min.
—
10
10
0
Max.
20
—
—
—
Units
ns
ns
ns
ns