ZL50015GAC ZARLINK [Zarlink Semiconductor Inc], ZL50015GAC Datasheet - Page 19
ZL50015GAC
Manufacturer Part Number
ZL50015GAC
Description
Enhanced 1 K Digital Switch with Stratum 4E DPLL
Manufacturer
ZARLINK [Zarlink Semiconductor Inc]
Datasheet
1.ZL50015GAC.pdf
(122 pages)
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R9, N10, P9,
M4, N6, R6,
M8, N8, P8,
R8, M9, N9,
R3, P6, R5,
P7, R7, N7,
PBGA Pin
N15, P13,
N5, P12,
Number
R10
N12
R12
P15
B15
R11
N11
LQFP Pin
Number
13, 14,
55, 56,
16, 18,
20, 22,
23, 24,
25, 26,
27, 28,
30, 32,
34, 36,
11, 12,
58, 59
37, 38
141
44
40
39
42
STOHZ 0 - 7
Pin Name
DTA_RDY
R/W_WR
D0 - 15
DS_RD
ODE
CS
Zarlink Semiconductor Inc.
Serial Output Streams High Impedance Control 0 to 7
(5 V-Tolerant Slew-Rate-Limited Three-state Outputs)
These pins are used to enable (or disable) external three-state
buffers. When an output channel is in the high impedance state,
the STOHZ drives high for the duration of the corresponding output
channel. When the STio channel is active, the STOHZ drives low
for the duration of the corresponding output channel. STOHZ
outputs are available for STio0 - only.
Output Drive Enable (5 V-Tolerant Input with Internal Pull-up)
This is the output enable control for STio0 - 15 and the
output-driven-high control for STOHZ0 - 7. When it is high, STio0 -
15 and STOHZ0 - 7 are enabled. When it is low, STio0 - 15 are
tristated and STOHZ0 - 7 are driven high.
Data Bus 0 to 15 (5 V-Tolerant Slew-Rate-Limited Three-state
I/Os)
These pins form the 16-bit data bus of the microprocessor port.
Data Transfer Acknowledgment_Ready (5 V-Tolerant
Three-state Output)
This active low output indicates that a data bus transfer is
complete for the Motorola interface. For the Intel interface, it
indicates a transfer is completed when this pin goes from low to
high. An external pull-up resistor MUST hold this pin at HIGH level
for the Motorola mode. An external pull-down resistor MUST hold
this pin at LOW level for the Intel mode.
Chip Select (5 V-Tolerant Input)
Active low input used by the Motorola or Intel microprocessor to
enable the microprocessor port access.
Read/Write_Write (5 V-Tolerant Input)
This input controls the direction of the data bus lines (D0 - 15)
during a microprocessor access. For the Motorola interface, this
pin is set high and low for the read and write access respectively.
For the Intel interface, a write access is indicated when this pin
goes low.
Data Strobe_Read (5 V-Tolerant Input)
This active low input works in conjunction with CS to enable the
microprocessor port read and write operations for the Motorola
interface. A read access is indicated when it goes low for the Intel
interface.
ZL50015
19
Description
Data Sheet
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