MAC7100 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

MAC7100

MAC7100 Microcontroller Family Hardware Specifications

Motorola => Freescale 

Freescale Semiconductor, Inc.

Electrical Characteristics

3.9 External Bus Timing Specifications

Table 22 lists processor bus input timings, which are shown in Figure 6, Figure 7 and Figure 8.

NOTE

All processor bus timings are synchronous; that is, input setup/hold and

output delay with respect to the rising edge of a reference clock. The

reference clock is the CLKOUT output.

All other timing relationships can be derived from these values.

Table 22. External Bus Input Timing Specifications

Num C

Rating 1

Symbol Min Max Unit

L1

CLKOUT

Control Inputs

L2a

Control input valid to CLKOUT high 2

L3a

CLKOUT high to control inputs invalid 2

Data Inputs

tCYC

23 — ns

tCVCH 13 — ns

tCHCII

0

— ns

L4

Data input (DATA[15:0]) valid to CLKOUT high

tDIVCH

9

L5

CLKOUT high to data input (DATA[15:0]) invalid

tCHDII

0

1 Timing specifications have been indicated taking into account the full drive strength for the pads.

2 TA pins are being referred to as control inputs.

— ns

— ns

CLKOUT(45MHz)

Input Setup & Hold

Input Rise Time

Input Fall Time

tSETUP

Invalid

1.5 V

1.5 V Valid 1.5 V

tHOLD

Invalid

VH = VIH

VL = VIL

VH = VIH

VL = VIL

tRISE = 1.5 ns

tFALL = 1.5 ns

CLKOUT

L4

L5

Inputs

Figure 6. General Input Timing Requirements

19

MAC7100 Microcontroller Family Hardware Specifications

MOTOROLA

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

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