TI380PCIA Datasheet, PDF (37/40 Pages) Texas Instruments – PCI BUS INTERFACE FOR THE TI380 COMMPROCESSORS

TI380PCIA
PCI BUS INTERFACE FOR THE TI380 COMMPROCESSORS™
SPWS035 – JUNE 1997
ac characteristics for serial EEPROM interface over recommended ranges of supply voltage and
operating free-air temperature (see Figure 22)
PARAMETER
ALT
MIN MAX UNIT
tCH1CH2
tCL1CL2
tDH1DH2
tDL1DL2
tCHDX
tCHCL
tDLCL
tCLDX
tCLCH
tDXCX
tCHDH
tDHDL
tCLQV
tCLQX
fC
tLPF
tW
Rise time, clock
Fall time, clock
Rise time, input
Fall time, input
Setup time, clock high to input transition (see Note 13)
Pulse duration, clock high
Input low to clock low (START)
Clock low to input transition
Pulse duration, clock low
Input transition to clock transition
Clock high to input high (STOP)
Input high to input low (bus-free)
Clock low to output valid
Clock high to output transition
Clock frequency
Input low pass first order filter time constant (SCL and SDA inputs)
Write time (see Note 14)
tR
tF
tR
tF
tSU:STA
t-HIGH
tHD:STA
tHD:DAT
tLOW
tSU:DAT
tSU:STO
tBUF
tAA
tDH
fSCL
TI
tWR
1 µs
300 ns
1 µs
300 ns
4.7
µs
4
µs
4
µs
0
µs
4.7
µs
250
ns
4.7
µs
4.7
µs
0.3 3.5 µs
300
ns
100 kHz
100 ns
10 ms
NOTES: 13. For a restart condition, or following a write cycle
14. In the multibyte write mode only, if accessed bytes are on two consecutive rows (upper 5 MSB must not change), the maximum
programming time is doubled to 20 ms.
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