ADSP-2188MKST-300 Analog Devices Inc, ADSP-2188MKST-300 Datasheet - Page 23
ADSP-2188MKST-300
Manufacturer Part Number
ADSP-2188MKST-300
Description
IC DSP CONTROLLER 16BIT 100LQFP
Manufacturer
Analog Devices Inc
Series
ADSP-21xxr
Type
Fixed Pointr
Datasheet
1.ADSP-2188MKSTZ-300.pdf
(40 pages)
Specifications of ADSP-2188MKST-300
Rohs Status
RoHS non-compliant
Interface
Host Interface, Serial Port
Clock Rate
75MHz
Non-volatile Memory
External
On-chip Ram
256kB
Voltage - I/o
3.30V
Voltage - Core
2.50V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-LQFP
Device Core Size
16b
Architecture
Enhanced Harvard
Format
Fixed Point
Clock Freq (max)
75MHz
Mips
75
Device Input Clock Speed
75MHz
Ram Size
256KB
Operating Supply Voltage (typ)
2.75/3.3V
Operating Supply Voltage (min)
2.61V
Operating Supply Voltage (max)
2.89/3.6V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
100
Package Type
LQFP
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
TEST CONDITIONS
Output Disable Time
Output pins are considered to be disabled when they have stopped
driving and started a transition from the measured output high
or low voltage to a high impedance state. The output disable
time (t
in the Output Enable/Disable diagram. The time is the interval
from when a reference signal reaches a high or low voltage level
to when the output voltages have changed by 0.5 V from the
measured output high or low voltage.
The decay time, t
C
approximated by the following equation:
from which
is calculated. If multiple pins (such as the data bus) are disabled,
the measurement value is that of the last pin to stop driving.
L
, and the current load, i
DIS
) is the difference of t
OUTPUT
INPUT
DECAY
t
DIS
t
DECAY
, is dependent on the capacitive load,
= t
L
MEASURED
, on the output pin. It can be
=
MEASURED
C
L
× 0 5 . V
i
– t
L
DECAY
and t
0.8V
1.5V
1.5V
2.0V
DECAY
, as shown
Output Enable Time
Output pins are considered to be enabled when they have made
a transition from a high-impedance state to when they start driving.
The output enable time (t
ence signal reaches a high or low voltage level to when the output
has reached a specified high or low trip point, as shown Figure
19. If multiple pins (such as the data bus) are enabled, the mea-
surement value is that of the first pin to start driving.
REFERENCE
OUTPUT
(MEASURED)
(MEASURED)
SIGNAL
V
V
OL
OUTPUT
OH
OUTPUT STOPS
t
PIN
t
TO
MEASURED
DIS
DRIVING
50pF
HIGH-IMPEDANCE STATE. TEST CONDITIONS CAUSE
THIS VOLTAGE LEVEL TO BE APPROXIMATELY 1.5V.
V
V
OH
OL
t
DECAY
ENA
(MEASURED) +0.5V
(MEASURED) – 0.5V
) is the interval from when a refer-
I
I
OL
OH
ADSP-2188M
1.0V
2.0V
OUTPUT
DRIVING
STARTS
t
ENA
1.5V
V
(MEASURED)
V
(MEASURED)
OH
OL