MC68150FN40 IDT, Integrated Device Technology Inc, MC68150FN40 Datasheet - Page 2

• Manufacturer Part Number: MC68150FN40
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of MC68150FN40

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: PLCC
• Pin Count: 68
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

IDT™ 32-Bit to 32/16/8-Bit Dynamic READ/WRITE Bus Sizer
Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc
MC68150
32-Bit to 32/16/8-Bit Dynamic READ/WRITE Bus Sizer
PIN DESCRIPTIONS
MC68150
MOTOROLA
2
BCLK
D31–D0
PD31–PD16
PA1, PA0
UWE, LWE
SWE
DS
DSACK1,
DSACK0
SIZ1, SIZ0
A1, A0
CS
TA
R/W
Pin
I/O
I/O
I/O
O
O
O
O
O
I
I
I
I
I
I
Description
Bus clock — the main system clock (from MC88916)
Data bits on the 32-bit ‘040 bus
Peripheral data — data bits on the 8/16/32-bit peripheral side; PD15–PD0 do not exist for a 32-bit access, these
require two F245 transceivers
Peripheral address — address bits indicating the byte being accessed on the peripheral side (00 = MSB, 11 = LSB)
Upper (PD31–PD24), lower (PD23–PD16) write enables on the peripheral side significant for 16-bit ports (WRITE)
Single write enable on the peripheral-bit side for 8-bit ports (WRITE)
Data strobe indicates data can be put on the peripheral bus to be read by the ‘040 (READ) or is valid to be written
on the peripheral bus (WRITE)
Data transfer acknowledge. HH inserts wait states in the current bus cycle. HL indicates the peripheral bus size
is 8-bits. LH indicates peripheral bus size is 16-bits. LL indicates the peripheral bus is 32-bits. Recognition of these
signals is what allows for “dynamic” bus sizing
Indicates the size of the MPU bus access. HH or LL = 32-bits (long word); HL = 16-bits (word); LH = 8-bits (byte)
‘040 Address bits, Indicates the byte offset of the ‘040 access (which byte is accessed: HH = D7-D0; HL = D15-D8;
LH = D23-D16; LL = D31-D24)
Chip select, tells the 68150 that a transfer is starting or ending
Transfer acknowledge indicates the 68150 has completed the transfer
READ/WRITE, tells the 68150 if it is a read or write transfer
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 1. Pinout: 68-Lead PLCC (Top View)
Go to: www.freescale.com
MC68150
2
High Performance Frequency
Control Products — BR1334
NETCOM
MC68150