LH7A404 Sharp Electronics, LH7A404 Datasheet - Page 64

• Manufacturer Part Number: LH7A404
• Manufacturer: Sharp Electronics

Specifications of LH7A404

• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Processing Unit: Microcontroller
• Operating Supply Voltage (min): 1.71V
• Operating Supply Voltage (typ): 1.8V
• Operating Supply Voltage (max): 1.89V
• Package Type: CABGA
• Pin Count: 324
• Mounting: Surface Mount
• Rad Hardened: No
• Lead Free Status / RoHS Status: Not Compliant

LH7A404
NOTE: *The timing relationship is specified as a cycle-based timing. Due to variations in crystal input clock jitter,
64
tDA_nPOR_nRSTO
tDD_nPOR_nRSTO
tDD_nPOR_WKUP
tA_WKUP
tDA_nPOR_CLKEN
tDA_WKUP_CLKEN
nRESETOUT
WAKEUP
power rail noise and I/O conditioning these timings will vary marginally. It is recommended that designers
add some timing margin to avoid any possible corner case condition.
CLKEN
nPOR
SIGNAL
TRIGGER
POINT
tDA_nPOR_CLKEN
tDA_nPOR_nRSTO
Table 14. nRESETOUT Timing Values for nPOR Trigger
MIN.
2
4
2
Figure 49. nRESETOUT Timing for nPOR Trigger
TYP.
MAX.
30
30
30
4
Version 1.5
XTAL32 Periods*
XTAL32 Periods*
1 Hz Periods*
tDD_nPOR_nRSTO
UNITS
tDD_nPOR_WKUP
ns
ns
ns
nPOR to nRESETOUT assertion delay
nPOR to nRESETOUT deassertion delay
nPOR deassertio to WAKEUP assert delay
WAKEUP assertion time
nURESET assertion to CLKEN deassertion delay
WAKEUP to CLKEN assertion delay
tDA_WKUP_CLKEN
tA_WKUP
DESCRIPTION
32-Bit System-on-Chip
Data Sheet
LH7A404-202