SCN2652 Datasheet, PDF (17/28 Pages) NXP Semiconductors – Multi-protocol communications controller MPCC

Philips Semiconductors
Multi-protocol communications controller (MPCC)
Product specification
SCN2652/SCN68652
AC ELECTRICAL CHARACTERISTICS^{1, 2, 3}
PARAMETER
2MHz CLOCK
Min
Typ
Max
UNIT
Set-up and hold time
t_ACS
Address/control set-up
50
t_ACH
Address/control hold
0
t_DS
Data bus set-up (write)
50
t_DH
Data bus hold (write)
0
t_RXS
Receiver serial data set-up
150
t_RxH
Receiver serial data hold
150
Pulse width
t_RES
RESET
250
t_DBEN DBEN
250
Delay Time
t_DD
Data bus (read)
t_TxD
Transmit serial data
t_DBEND DBEN to DBEN delay
200
t_DF
Data bus float time (read)
f
Clock (RxC, TxC) frequency
ns
ns
m⁴
170
250
ns
150
ns
2.0
MHz
t_CLK1 Clock high (MM = 0)
165
t_CLK2 Clock high (MM = 1)
240
ns
t_CLK0 Clock low
240
NOTES:
1. Parameters are valid over operating temperature range unless otherwise specified. See ordering code table for applicable temperature
range and operating supply range.
2. All voltage measurements are referenced to ground. All time measurements are at 0.8V or 2.0V. Input voltage levels for testing are 0.4V and
2.4V.
3. Output load C_L = 100pF.
4. m = TxC low and applies to writing to TDSR_H only.
TIMING DIAGRAMS
RESET
RESET AND WRITE DATA BUS
RESET
t_RES
DBEN
A_0, A₂
t_ACS
CE, R/W,
BYTE
t_ACS
D₀–D₁₅
(READ)
FLOATING
D₀–D₁₅
(WRITE)
t_DS
t_DBEN
NOT
VALID
t_DD
VALID
Figure 10. Timing Diagrams
t_ACH
t_ACH
FLOATING
t_DF
t_DH
SD00065
1995 May 01
17